Home / 898,454,549.40-1,346,620,140.90-380,883,989.40

Finding the Fourth Proportional to 898,454,549.40, 1,346,620,140.90 and 380,883,989.40

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Solution

The fourth proportional to 898,454,549.40, 1,346,620,140.90 and 380,883,989.40 is: 570,875,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,454,549.40 : 1,346,620,140.90 = 380,883,989.40 : x
  2. Step 2: Convert to fraction form
    898,454,549.40/1,346,620,140.90 = 380,883,989.40/x
  3. Step 3: Cross multiply
    898,454,549.40x = 1,346,620,140.90 × 380,883,989.40
  4. Step 4: Simplify right side
    898,454,549.40x = 512,906,051,472,382,080
  5. Step 5: Solve for x
    x = 512,906,051,472,382,080/898,454,549.40
  6. Step 6: Final answer
    x = 570,875,902.20

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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.