Home / 977,509,380.30-1,467,964,681.65-518,344,356.30

Finding the Fourth Proportional to 977,509,380.30, 1,467,964,681.65 and 518,344,356.30

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Solution

The fourth proportional to 977,509,380.30, 1,467,964,681.65 and 518,344,356.30 is: 778,418,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,509,380.30 : 1,467,964,681.65 = 518,344,356.30 : x
  2. Step 2: Convert to fraction form
    977,509,380.30/1,467,964,681.65 = 518,344,356.30/x
  3. Step 3: Cross multiply
    977,509,380.30x = 1,467,964,681.65 × 518,344,356.30
  4. Step 4: Simplify right side
    977,509,380.30x = 760,911,207,981,003,776
  5. Step 5: Solve for x
    x = 760,911,207,981,003,776/977,509,380.30
  6. Step 6: Final answer
    x = 778,418,318.35

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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.