Home / 129,023,006.16-178,051,669.56-71,076,254.16

Finding the Fourth Proportional to 129,023,006.16, 178,051,669.56 and 71,076,254.16

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Solution

The fourth proportional to 129,023,006.16, 178,051,669.56 and 71,076,254.16 is: 98,085,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,023,006.16 : 178,051,669.56 = 71,076,254.16 : x
  2. Step 2: Convert to fraction form
    129,023,006.16/178,051,669.56 = 71,076,254.16/x
  3. Step 3: Cross multiply
    129,023,006.16x = 178,051,669.56 × 71,076,254.16
  4. Step 4: Simplify right side
    129,023,006.16x = 12,655,245,719,258,894
  5. Step 5: Solve for x
    x = 12,655,245,719,258,894/129,023,006.16
  6. Step 6: Final answer
    x = 98,085,187.25

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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.