Home / 129,482,061.14-178,683,159.05-70,743,465.02

Finding the Fourth Proportional to 129,482,061.14, 178,683,159.05 and 70,743,465.02

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Solution

The fourth proportional to 129,482,061.14, 178,683,159.05 and 70,743,465.02 is: 97,624,842.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,482,061.14 : 178,683,159.05 = 70,743,465.02 : x
  2. Step 2: Convert to fraction form
    129,482,061.14/178,683,159.05 = 70,743,465.02/x
  3. Step 3: Cross multiply
    129,482,061.14x = 178,683,159.05 × 70,743,465.02
  4. Step 4: Simplify right side
    129,482,061.14x = 12,640,665,810,669,638
  5. Step 5: Solve for x
    x = 12,640,665,810,669,638/129,482,061.14
  6. Step 6: Final answer
    x = 97,624,842.39

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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.