Home / 376,486,687.20-564,730,030.80-172,413,343.20

Finding the Fourth Proportional to 376,486,687.20, 564,730,030.80 and 172,413,343.20

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Solution

The fourth proportional to 376,486,687.20, 564,730,030.80 and 172,413,343.20 is: 258,620,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,486,687.20 : 564,730,030.80 = 172,413,343.20 : x
  2. Step 2: Convert to fraction form
    376,486,687.20/564,730,030.80 = 172,413,343.20/x
  3. Step 3: Cross multiply
    376,486,687.20x = 564,730,030.80 × 172,413,343.20
  4. Step 4: Simplify right side
    376,486,687.20x = 97,366,992,615,666,960
  5. Step 5: Solve for x
    x = 97,366,992,615,666,960/376,486,687.20
  6. Step 6: Final answer
    x = 258,620,014.80

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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.