Home / 242,519,679.60-363,779,519.40-215,735,053.20

Finding the Fourth Proportional to 242,519,679.60, 363,779,519.40 and 215,735,053.20

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Solution

The fourth proportional to 242,519,679.60, 363,779,519.40 and 215,735,053.20 is: 323,602,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,519,679.60 : 363,779,519.40 = 215,735,053.20 : x
  2. Step 2: Convert to fraction form
    242,519,679.60/363,779,519.40 = 215,735,053.20/x
  3. Step 3: Cross multiply
    242,519,679.60x = 363,779,519.40 × 215,735,053.20
  4. Step 4: Simplify right side
    242,519,679.60x = 78,479,993,970,829,424
  5. Step 5: Solve for x
    x = 78,479,993,970,829,424/242,519,679.60
  6. Step 6: Final answer
    x = 323,602,579.80

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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.