Home / 129,542,091.47-178,767,652.22-70,804,722.57

Finding the Fourth Proportional to 129,542,091.47, 178,767,652.22 and 70,804,722.57

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Solution

The fourth proportional to 129,542,091.47, 178,767,652.22 and 70,804,722.57 is: 97,710,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,542,091.47 : 178,767,652.22 = 70,804,722.57 : x
  2. Step 2: Convert to fraction form
    129,542,091.47/178,767,652.22 = 70,804,722.57/x
  3. Step 3: Cross multiply
    129,542,091.47x = 178,767,652.22 × 70,804,722.57
  4. Step 4: Simplify right side
    129,542,091.47x = 12,657,594,018,679,482
  5. Step 5: Solve for x
    x = 12,657,594,018,679,482/129,542,091.47
  6. Step 6: Final answer
    x = 97,710,279.92

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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.