Home / 478,465,069.50-660,282,061.59-258,448,497.66

Finding the Fourth Proportional to 478,465,069.50, 660,282,061.59 and 258,448,497.66

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Solution

The fourth proportional to 478,465,069.50, 660,282,061.59 and 258,448,497.66 is: 356,659,070.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,465,069.50 : 660,282,061.59 = 258,448,497.66 : x
  2. Step 2: Convert to fraction form
    478,465,069.50/660,282,061.59 = 258,448,497.66/x
  3. Step 3: Cross multiply
    478,465,069.50x = 660,282,061.59 × 258,448,497.66
  4. Step 4: Simplify right side
    478,465,069.50x = 170,648,906,849,783,104
  5. Step 5: Solve for x
    x = 170,648,906,849,783,104/478,465,069.50
  6. Step 6: Final answer
    x = 356,659,070.28

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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.