Home / 137,076,275.89-189,164,149.65-74,352,217.16

Finding the Fourth Proportional to 137,076,275.89, 189,164,149.65 and 74,352,217.16

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Solution

The fourth proportional to 137,076,275.89, 189,164,149.65 and 74,352,217.16 is: 102,605,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,076,275.89 : 189,164,149.65 = 74,352,217.16 : x
  2. Step 2: Convert to fraction form
    137,076,275.89/189,164,149.65 = 74,352,217.16/x
  3. Step 3: Cross multiply
    137,076,275.89x = 189,164,149.65 × 74,352,217.16
  4. Step 4: Simplify right side
    137,076,275.89x = 14,064,773,933,663,538
  5. Step 5: Solve for x
    x = 14,064,773,933,663,538/137,076,275.89
  6. Step 6: Final answer
    x = 102,605,457.02

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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.