Home / 898,156,923.80-1,347,235,385.70-438,390,037.40

Finding the Fourth Proportional to 898,156,923.80, 1,347,235,385.70 and 438,390,037.40

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Solution

The fourth proportional to 898,156,923.80, 1,347,235,385.70 and 438,390,037.40 is: 657,585,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,156,923.80 : 1,347,235,385.70 = 438,390,037.40 : x
  2. Step 2: Convert to fraction form
    898,156,923.80/1,347,235,385.70 = 438,390,037.40/x
  3. Step 3: Cross multiply
    898,156,923.80x = 1,347,235,385.70 × 438,390,037.40
  4. Step 4: Simplify right side
    898,156,923.80x = 590,614,571,123,626,368
  5. Step 5: Solve for x
    x = 590,614,571,123,626,368/898,156,923.80
  6. Step 6: Final answer
    x = 657,585,056.10

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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.