Home / 129,094,942.15-178,145,834.02-70,356,348.53

Finding the Fourth Proportional to 129,094,942.15, 178,145,834.02 and 70,356,348.53

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Solution

The fourth proportional to 129,094,942.15, 178,145,834.02 and 70,356,348.53 is: 97,088,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,094,942.15 : 178,145,834.02 = 70,356,348.53 : x
  2. Step 2: Convert to fraction form
    129,094,942.15/178,145,834.02 = 70,356,348.53/x
  3. Step 3: Cross multiply
    129,094,942.15x = 178,145,834.02 × 70,356,348.53
  4. Step 4: Simplify right side
    129,094,942.15x = 12,533,690,387,478,652
  5. Step 5: Solve for x
    x = 12,533,690,387,478,652/129,094,942.15
  6. Step 6: Final answer
    x = 97,088,934.54

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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.