Home / 770,243,115.52-1,155,916,307.76-327,895,926.40

Finding the Fourth Proportional to 770,243,115.52, 1,155,916,307.76 and 327,895,926.40

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Solution

The fourth proportional to 770,243,115.52, 1,155,916,307.76 and 327,895,926.40 is: 492,078,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,243,115.52 : 1,155,916,307.76 = 327,895,926.40 : x
  2. Step 2: Convert to fraction form
    770,243,115.52/1,155,916,307.76 = 327,895,926.40/x
  3. Step 3: Cross multiply
    770,243,115.52x = 1,155,916,307.76 × 327,895,926.40
  4. Step 4: Simplify right side
    770,243,115.52x = 379,020,248,573,832,704
  5. Step 5: Solve for x
    x = 379,020,248,573,832,704/770,243,115.52
  6. Step 6: Final answer
    x = 492,078,722.86

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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.