Home / 402,283,145.80-603,283,001.10-143,506,808.20

Finding the Fourth Proportional to 402,283,145.80, 603,283,001.10 and 143,506,808.20

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Solution

The fourth proportional to 402,283,145.80, 603,283,001.10 and 143,506,808.20 is: 215,209,657.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,283,145.80 : 603,283,001.10 = 143,506,808.20 : x
  2. Step 2: Convert to fraction form
    402,283,145.80/603,283,001.10 = 143,506,808.20/x
  3. Step 3: Cross multiply
    402,283,145.80x = 603,283,001.10 × 143,506,808.20
  4. Step 4: Simplify right side
    402,283,145.80x = 86,575,217,929,178,080
  5. Step 5: Solve for x
    x = 86,575,217,929,178,080/402,283,145.80
  6. Step 6: Final answer
    x = 215,209,657.26

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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.