Home / 403,390,061,181.63-605,191,221,182.85-144,966,920,397.92

Finding the Fourth Proportional to 403,390,061,181.63, 605,191,221,182.85 and 144,966,920,397.92

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Solution

The fourth proportional to 403,390,061,181.63, 605,191,221,182.85 and 144,966,920,397.92 is: 217,488,520,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,390,061,181.63 : 605,191,221,182.85 = 144,966,920,397.92 : x
  2. Step 2: Convert to fraction form
    403,390,061,181.63/605,191,221,182.85 = 144,966,920,397.92/x
  3. Step 3: Cross multiply
    403,390,061,181.63x = 605,191,221,182.85 × 144,966,920,397.92
  4. Step 4: Simplify right side
    403,390,061,181.63x = 87,732,707,586,734,215,397,376
  5. Step 5: Solve for x
    x = 87,732,707,586,734,215,397,376/403,390,061,181.63
  6. Step 6: Final answer
    x = 217,488,520,489.93

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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.