Home / 898,128,001.30-1,347,192,001.95-511,144,474.90

Finding the Fourth Proportional to 898,128,001.30, 1,347,192,001.95 and 511,144,474.90

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Solution

The fourth proportional to 898,128,001.30, 1,347,192,001.95 and 511,144,474.90 is: 766,716,712.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,128,001.30 : 1,347,192,001.95 = 511,144,474.90 : x
  2. Step 2: Convert to fraction form
    898,128,001.30/1,347,192,001.95 = 511,144,474.90/x
  3. Step 3: Cross multiply
    898,128,001.30x = 1,347,192,001.95 × 511,144,474.90
  4. Step 4: Simplify right side
    898,128,001.30x = 688,609,748,426,212,480
  5. Step 5: Solve for x
    x = 688,609,748,426,212,480/898,128,001.30
  6. Step 6: Final answer
    x = 766,716,712.35

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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.