Home / 478,369,108.20-717,553,662.30-260,124,004.20

Finding the Fourth Proportional to 478,369,108.20, 717,553,662.30 and 260,124,004.20

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Solution

The fourth proportional to 478,369,108.20, 717,553,662.30 and 260,124,004.20 is: 390,186,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,369,108.20 : 717,553,662.30 = 260,124,004.20 : x
  2. Step 2: Convert to fraction form
    478,369,108.20/717,553,662.30 = 260,124,004.20/x
  3. Step 3: Cross multiply
    478,369,108.20x = 717,553,662.30 × 260,124,004.20
  4. Step 4: Simplify right side
    478,369,108.20x = 186,652,931,865,850,560
  5. Step 5: Solve for x
    x = 186,652,931,865,850,560/478,369,108.20
  6. Step 6: Final answer
    x = 390,186,006.30

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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.