Home / 30,608,319.80-42,241,390.90-16,857,280.28

Finding the Fourth Proportional to 30,608,319.80, 42,241,390.90 and 16,857,280.28

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Solution

The fourth proportional to 30,608,319.80, 42,241,390.90 and 16,857,280.28 is: 23,264,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608,319.80 : 42,241,390.90 = 16,857,280.28 : x
  2. Step 2: Convert to fraction form
    30,608,319.80/42,241,390.90 = 16,857,280.28/x
  3. Step 3: Cross multiply
    30,608,319.80x = 42,241,390.90 × 16,857,280.28
  4. Step 4: Simplify right side
    30,608,319.80x = 712,074,965,818,341.50
  5. Step 5: Solve for x
    x = 712,074,965,818,341.50/30,608,319.80
  6. Step 6: Final answer
    x = 23,264,098.47

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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.