Home / 480,666,017.91-663,346,904.55-268,971,000.78

Finding the Fourth Proportional to 480,666,017.91, 663,346,904.55 and 268,971,000.78

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Solution

The fourth proportional to 480,666,017.91, 663,346,904.55 and 268,971,000.78 is: 371,195,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,666,017.91 : 663,346,904.55 = 268,971,000.78 : x
  2. Step 2: Convert to fraction form
    480,666,017.91/663,346,904.55 = 268,971,000.78/x
  3. Step 3: Cross multiply
    480,666,017.91x = 663,346,904.55 × 268,971,000.78
  4. Step 4: Simplify right side
    480,666,017.91x = 178,421,080,781,128,608
  5. Step 5: Solve for x
    x = 178,421,080,781,128,608/480,666,017.91
  6. Step 6: Final answer
    x = 371,195,537.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.