Home / 478,334,680.80-717,502,021.20-155,218,552.80

Finding the Fourth Proportional to 478,334,680.80, 717,502,021.20 and 155,218,552.80

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Solution

The fourth proportional to 478,334,680.80, 717,502,021.20 and 155,218,552.80 is: 232,827,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334,680.80 : 717,502,021.20 = 155,218,552.80 : x
  2. Step 2: Convert to fraction form
    478,334,680.80/717,502,021.20 = 155,218,552.80/x
  3. Step 3: Cross multiply
    478,334,680.80x = 717,502,021.20 × 155,218,552.80
  4. Step 4: Simplify right side
    478,334,680.80x = 111,369,625,361,738,928
  5. Step 5: Solve for x
    x = 111,369,625,361,738,928/478,334,680.80
  6. Step 6: Final answer
    x = 232,827,829.20

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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.