Home / 87,220,258.40-130,578,445.20-53,208,034.40

Finding the Fourth Proportional to 87,220,258.40, 130,578,445.20 and 53,208,034.40

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Solution

The fourth proportional to 87,220,258.40, 130,578,445.20 and 53,208,034.40 is: 79,658,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,220,258.40 : 130,578,445.20 = 53,208,034.40 : x
  2. Step 2: Convert to fraction form
    87,220,258.40/130,578,445.20 = 53,208,034.40/x
  3. Step 3: Cross multiply
    87,220,258.40x = 130,578,445.20 × 53,208,034.40
  4. Step 4: Simplify right side
    87,220,258.40x = 6,947,822,404,100,115
  5. Step 5: Solve for x
    x = 6,947,822,404,100,115/87,220,258.40
  6. Step 6: Final answer
    x = 79,658,356.12

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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.