Home / 1,002,906,005.40-1,504,359,008.10-312,812,152.20

Finding the Fourth Proportional to 1,002,906,005.40, 1,504,359,008.10 and 312,812,152.20

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Solution

The fourth proportional to 1,002,906,005.40, 1,504,359,008.10 and 312,812,152.20 is: 469,218,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,906,005.40 : 1,504,359,008.10 = 312,812,152.20 : x
  2. Step 2: Convert to fraction form
    1,002,906,005.40/1,504,359,008.10 = 312,812,152.20/x
  3. Step 3: Cross multiply
    1,002,906,005.40x = 1,504,359,008.10 × 312,812,152.20
  4. Step 4: Simplify right side
    1,002,906,005.40x = 470,581,779,005,218,176
  5. Step 5: Solve for x
    x = 470,581,779,005,218,176/1,002,906,005.40
  6. Step 6: Final answer
    x = 469,218,228.30

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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.