Home / 288,012,213.60-432,018,320.40-72,601,461.60

Finding the Fourth Proportional to 288,012,213.60, 432,018,320.40 and 72,601,461.60

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Solution

The fourth proportional to 288,012,213.60, 432,018,320.40 and 72,601,461.60 is: 108,902,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,012,213.60 : 432,018,320.40 = 72,601,461.60 : x
  2. Step 2: Convert to fraction form
    288,012,213.60/432,018,320.40 = 72,601,461.60/x
  3. Step 3: Cross multiply
    288,012,213.60x = 432,018,320.40 × 72,601,461.60
  4. Step 4: Simplify right side
    288,012,213.60x = 31,365,161,499,017,092
  5. Step 5: Solve for x
    x = 31,365,161,499,017,092/288,012,213.60
  6. Step 6: Final answer
    x = 108,902,192.40

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1.5x scale

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.