Home / 898,128,532.80-1,347,192,799.20-511,145,006.40

Finding the Fourth Proportional to 898,128,532.80, 1,347,192,799.20 and 511,145,006.40

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Solution

The fourth proportional to 898,128,532.80, 1,347,192,799.20 and 511,145,006.40 is: 766,717,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,128,532.80 : 1,347,192,799.20 = 511,145,006.40 : x
  2. Step 2: Convert to fraction form
    898,128,532.80/1,347,192,799.20 = 511,145,006.40/x
  3. Step 3: Cross multiply
    898,128,532.80x = 1,347,192,799.20 × 511,145,006.40
  4. Step 4: Simplify right side
    898,128,532.80x = 688,610,871,969,117,952
  5. Step 5: Solve for x
    x = 688,610,871,969,117,952/898,128,532.80
  6. Step 6: Final answer
    x = 766,717,509.60

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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.