Home / 130,899,873.90-180,643,048.11-72,164,647.92

Finding the Fourth Proportional to 130,899,873.90, 180,643,048.11 and 72,164,647.92

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Solution

The fourth proportional to 130,899,873.90, 180,643,048.11 and 72,164,647.92 is: 99,587,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,899,873.90 : 180,643,048.11 = 72,164,647.92 : x
  2. Step 2: Convert to fraction form
    130,899,873.90/180,643,048.11 = 72,164,647.92/x
  3. Step 3: Cross multiply
    130,899,873.90x = 180,643,048.11 × 72,164,647.92
  4. Step 4: Simplify right side
    130,899,873.90x = 13,036,041,966,053,772
  5. Step 5: Solve for x
    x = 13,036,041,966,053,772/130,899,873.90
  6. Step 6: Final answer
    x = 99,587,887.88

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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.