Home / 478,207,686.21-659,899,924.17-263,619,407.50

Finding the Fourth Proportional to 478,207,686.21, 659,899,924.17 and 263,619,407.50

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Solution

The fourth proportional to 478,207,686.21, 659,899,924.17 and 263,619,407.50 is: 363,780,073.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,207,686.21 : 659,899,924.17 = 263,619,407.50 : x
  2. Step 2: Convert to fraction form
    478,207,686.21/659,899,924.17 = 263,619,407.50/x
  3. Step 3: Cross multiply
    478,207,686.21x = 659,899,924.17 × 263,619,407.50
  4. Step 4: Simplify right side
    478,207,686.21x = 173,962,427,020,804,064
  5. Step 5: Solve for x
    x = 173,962,427,020,804,064/478,207,686.21
  6. Step 6: Final answer
    x = 363,780,073.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.