Home / 478,465,137.50-660,282,155.43-258,448,565.66

Finding the Fourth Proportional to 478,465,137.50, 660,282,155.43 and 258,448,565.66

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Solution

The fourth proportional to 478,465,137.50, 660,282,155.43 and 258,448,565.66 is: 356,659,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,465,137.50 : 660,282,155.43 = 258,448,565.66 : x
  2. Step 2: Convert to fraction form
    478,465,137.50/660,282,155.43 = 258,448,565.66/x
  3. Step 3: Cross multiply
    478,465,137.50x = 660,282,155.43 × 258,448,565.66
  4. Step 4: Simplify right side
    478,465,137.50x = 170,648,976,001,776,672
  5. Step 5: Solve for x
    x = 170,648,976,001,776,672/478,465,137.50
  6. Step 6: Final answer
    x = 356,659,164.12

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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.