Home / 130,516,574.97-180,109,279.25-71,779,261.46

Finding the Fourth Proportional to 130,516,574.97, 180,109,279.25 and 71,779,261.46

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Solution

The fourth proportional to 130,516,574.97, 180,109,279.25 and 71,779,261.46 is: 99,053,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,516,574.97 : 180,109,279.25 = 71,779,261.46 : x
  2. Step 2: Convert to fraction form
    130,516,574.97/180,109,279.25 = 71,779,261.46/x
  3. Step 3: Cross multiply
    130,516,574.97x = 180,109,279.25 × 71,779,261.46
  4. Step 4: Simplify right side
    130,516,574.97x = 12,928,111,045,667,632
  5. Step 5: Solve for x
    x = 12,928,111,045,667,632/130,516,574.97
  6. Step 6: Final answer
    x = 99,053,404.12

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1.5x scale

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.