Home / 89,849,771.90-134,774,657.85-86,322,578.30

Finding the Fourth Proportional to 89,849,771.90, 134,774,657.85 and 86,322,578.30

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Solution

The fourth proportional to 89,849,771.90, 134,774,657.85 and 86,322,578.30 is: 129,483,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849,771.90 : 134,774,657.85 = 86,322,578.30 : x
  2. Step 2: Convert to fraction form
    89,849,771.90/134,774,657.85 = 86,322,578.30/x
  3. Step 3: Cross multiply
    89,849,771.90x = 134,774,657.85 × 86,322,578.30
  4. Step 4: Simplify right side
    89,849,771.90x = 11,634,095,955,112,334
  5. Step 5: Solve for x
    x = 11,634,095,955,112,334/89,849,771.90
  6. Step 6: Final answer
    x = 129,483,867.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.