Home / 15,607,991,058.87-21,539,043,602.06-8,471,406,342.27

Finding the Fourth Proportional to 15,607,991,058.87, 21,539,043,602.06 and 8,471,406,342.27

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Solution

The fourth proportional to 15,607,991,058.87, 21,539,043,602.06 and 8,471,406,342.27 is: 11,690,549,404.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607,991,058.87 : 21,539,043,602.06 = 8,471,406,342.27 : x
  2. Step 2: Convert to fraction form
    15,607,991,058.87/21,539,043,602.06 = 8,471,406,342.27/x
  3. Step 3: Cross multiply
    15,607,991,058.87x = 21,539,043,602.06 × 8,471,406,342.27
  4. Step 4: Simplify right side
    15,607,991,058.87x = 182,465,990,576,878,813,184
  5. Step 5: Solve for x
    x = 182,465,990,576,878,813,184/15,607,991,058.87
  6. Step 6: Final answer
    x = 11,690,549,404.38

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Double scale
Find fourth proportional to 15,607,991,059.87, 21,539,043,603.44 and 8,471,406,343.27
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.