Home / 130,813,804.13-180,527,138.60-75,069,421.43

Finding the Fourth Proportional to 130,813,804.13, 180,527,138.60 and 75,069,421.43

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Solution

The fourth proportional to 130,813,804.13, 180,527,138.60 and 75,069,421.43 is: 103,598,148.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,813,804.13 : 180,527,138.60 = 75,069,421.43 : x
  2. Step 2: Convert to fraction form
    130,813,804.13/180,527,138.60 = 75,069,421.43/x
  3. Step 3: Cross multiply
    130,813,804.13x = 180,527,138.60 × 75,069,421.43
  4. Step 4: Simplify right side
    130,813,804.13x = 13,552,067,845,837,436
  5. Step 5: Solve for x
    x = 13,552,067,845,837,436/130,813,804.13
  6. Step 6: Final answer
    x = 103,598,148.04

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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.