Home / 698,482,643.20-1,047,723,964.80-238,435,820.80

Finding the Fourth Proportional to 698,482,643.20, 1,047,723,964.80 and 238,435,820.80

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Solution

The fourth proportional to 698,482,643.20, 1,047,723,964.80 and 238,435,820.80 is: 357,653,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,482,643.20 : 1,047,723,964.80 = 238,435,820.80 : x
  2. Step 2: Convert to fraction form
    698,482,643.20/1,047,723,964.80 = 238,435,820.80/x
  3. Step 3: Cross multiply
    698,482,643.20x = 1,047,723,964.80 × 238,435,820.80
  4. Step 4: Simplify right side
    698,482,643.20x = 249,814,923,518,918,304
  5. Step 5: Solve for x
    x = 249,814,923,518,918,304/698,482,643.20
  6. Step 6: Final answer
    x = 357,653,731.20

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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.