Home / 359,339,810.40-539,009,715.60-129,225,857.40

Finding the Fourth Proportional to 359,339,810.40, 539,009,715.60 and 129,225,857.40

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Solution

The fourth proportional to 359,339,810.40, 539,009,715.60 and 129,225,857.40 is: 193,838,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,339,810.40 : 539,009,715.60 = 129,225,857.40 : x
  2. Step 2: Convert to fraction form
    359,339,810.40/539,009,715.60 = 129,225,857.40/x
  3. Step 3: Cross multiply
    359,339,810.40x = 539,009,715.60 × 129,225,857.40
  4. Step 4: Simplify right side
    359,339,810.40x = 69,653,992,645,340,160
  5. Step 5: Solve for x
    x = 69,653,992,645,340,160/359,339,810.40
  6. Step 6: Final answer
    x = 193,838,786.10

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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.