Home / 291,672,021.60-437,452,045.20-87,206,767.20

Finding the Fourth Proportional to 291,672,021.60, 437,452,045.20 and 87,206,767.20

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Solution

The fourth proportional to 291,672,021.60, 437,452,045.20 and 87,206,767.20 is: 130,793,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,672,021.60 : 437,452,045.20 = 87,206,767.20 : x
  2. Step 2: Convert to fraction form
    291,672,021.60/437,452,045.20 = 87,206,767.20/x
  3. Step 3: Cross multiply
    291,672,021.60x = 437,452,045.20 × 87,206,767.20
  4. Step 4: Simplify right side
    291,672,021.60x = 38,148,778,666,920,280
  5. Step 5: Solve for x
    x = 38,148,778,666,920,280/291,672,021.60
  6. Step 6: Final answer
    x = 130,793,411.24

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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.