Home / 359,339,816.40-539,009,724.60-129,225,863.40

Finding the Fourth Proportional to 359,339,816.40, 539,009,724.60 and 129,225,863.40

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Solution

The fourth proportional to 359,339,816.40, 539,009,724.60 and 129,225,863.40 is: 193,838,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,339,816.40 : 539,009,724.60 = 129,225,863.40 : x
  2. Step 2: Convert to fraction form
    359,339,816.40/539,009,724.60 = 129,225,863.40/x
  3. Step 3: Cross multiply
    359,339,816.40x = 539,009,724.60 × 129,225,863.40
  4. Step 4: Simplify right side
    359,339,816.40x = 69,653,997,042,431,224
  5. Step 5: Solve for x
    x = 69,653,997,042,431,224/359,339,816.40
  6. Step 6: Final answer
    x = 193,838,795.10

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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.