Home / 99,861,457.80-149,792,186.70-61,398,251.40

Finding the Fourth Proportional to 99,861,457.80, 149,792,186.70 and 61,398,251.40

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Solution

The fourth proportional to 99,861,457.80, 149,792,186.70 and 61,398,251.40 is: 92,097,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,861,457.80 : 149,792,186.70 = 61,398,251.40 : x
  2. Step 2: Convert to fraction form
    99,861,457.80/149,792,186.70 = 61,398,251.40/x
  3. Step 3: Cross multiply
    99,861,457.80x = 149,792,186.70 × 61,398,251.40
  4. Step 4: Simplify right side
    99,861,457.80x = 9,196,978,336,762,336
  5. Step 5: Solve for x
    x = 9,196,978,336,762,336/99,861,457.80
  6. Step 6: Final answer
    x = 92,097,377.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.