Home / 898,128,000.30-1,347,192,000.45-511,144,473.90

Finding the Fourth Proportional to 898,128,000.30, 1,347,192,000.45 and 511,144,473.90

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Solution

The fourth proportional to 898,128,000.30, 1,347,192,000.45 and 511,144,473.90 is: 766,716,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,128,000.30 : 1,347,192,000.45 = 511,144,473.90 : x
  2. Step 2: Convert to fraction form
    898,128,000.30/1,347,192,000.45 = 511,144,473.90/x
  3. Step 3: Cross multiply
    898,128,000.30x = 1,347,192,000.45 × 511,144,473.90
  4. Step 4: Simplify right side
    898,128,000.30x = 688,609,746,312,303,744
  5. Step 5: Solve for x
    x = 688,609,746,312,303,744/898,128,000.30
  6. Step 6: Final answer
    x = 766,716,710.85

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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.