Home / 83,871,265.92-115,778,059.20-56,385,137.28

Finding the Fourth Proportional to 83,871,265.92, 115,778,059.20 and 56,385,137.28

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Solution

The fourth proportional to 83,871,265.92, 115,778,059.20 and 56,385,137.28 is: 77,835,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,871,265.92 : 115,778,059.20 = 56,385,137.28 : x
  2. Step 2: Convert to fraction form
    83,871,265.92/115,778,059.20 = 56,385,137.28/x
  3. Step 3: Cross multiply
    83,871,265.92x = 115,778,059.20 × 56,385,137.28
  4. Step 4: Simplify right side
    83,871,265.92x = 6,528,161,762,003,967
  5. Step 5: Solve for x
    x = 6,528,161,762,003,967/83,871,265.92
  6. Step 6: Final answer
    x = 77,835,498.13

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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.