Home / 653,010,909.12-979,937,770.54-238,453,021.04

Finding the Fourth Proportional to 653,010,909.12, 979,937,770.54 and 238,453,021.04

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Solution

The fourth proportional to 653,010,909.12, 979,937,770.54 and 238,453,021.04 is: 357,833,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,010,909.12 : 979,937,770.54 = 238,453,021.04 : x
  2. Step 2: Convert to fraction form
    653,010,909.12/979,937,770.54 = 238,453,021.04/x
  3. Step 3: Cross multiply
    653,010,909.12x = 979,937,770.54 × 238,453,021.04
  4. Step 4: Simplify right side
    653,010,909.12x = 233,669,121,816,465,280
  5. Step 5: Solve for x
    x = 233,669,121,816,465,280/653,010,909.12
  6. Step 6: Final answer
    x = 357,833,412.20

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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.