Home / 898,128,154.80-1,347,192,232.20-511,144,628.40

Finding the Fourth Proportional to 898,128,154.80, 1,347,192,232.20 and 511,144,628.40

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Solution

The fourth proportional to 898,128,154.80, 1,347,192,232.20 and 511,144,628.40 is: 766,716,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,128,154.80 : 1,347,192,232.20 = 511,144,628.40 : x
  2. Step 2: Convert to fraction form
    898,128,154.80/1,347,192,232.20 = 511,144,628.40/x
  3. Step 3: Cross multiply
    898,128,154.80x = 1,347,192,232.20 × 511,144,628.40
  4. Step 4: Simplify right side
    898,128,154.80x = 688,610,072,911,235,456
  5. Step 5: Solve for x
    x = 688,610,072,911,235,456/898,128,154.80
  6. Step 6: Final answer
    x = 766,716,942.60

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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.