Home / 143,755,620.57-215,547,120.89-65,935,041.89

Finding the Fourth Proportional to 143,755,620.57, 215,547,120.89 and 65,935,041.89

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Solution

The fourth proportional to 143,755,620.57, 215,547,120.89 and 65,935,041.89 is: 98,862,975.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,755,620.57 : 215,547,120.89 = 65,935,041.89 : x
  2. Step 2: Convert to fraction form
    143,755,620.57/215,547,120.89 = 65,935,041.89/x
  3. Step 3: Cross multiply
    143,755,620.57x = 215,547,120.89 × 65,935,041.89
  4. Step 4: Simplify right side
    143,755,620.57x = 14,212,108,443,743,632
  5. Step 5: Solve for x
    x = 14,212,108,443,743,632/143,755,620.57
  6. Step 6: Final answer
    x = 98,862,975.84

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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.