Home / 641,466,607.12-885,223,881.70-348,111,175.12

Finding the Fourth Proportional to 641,466,607.12, 885,223,881.70 and 348,111,175.12

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Solution

The fourth proportional to 641,466,607.12, 885,223,881.70 and 348,111,175.12 is: 480,393,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,466,607.12 : 885,223,881.70 = 348,111,175.12 : x
  2. Step 2: Convert to fraction form
    641,466,607.12/885,223,881.70 = 348,111,175.12/x
  3. Step 3: Cross multiply
    641,466,607.12x = 885,223,881.70 × 348,111,175.12
  4. Step 4: Simplify right side
    641,466,607.12x = 308,156,325,699,791,552
  5. Step 5: Solve for x
    x = 308,156,325,699,791,552/641,466,607.12
  6. Step 6: Final answer
    x = 480,393,402.06

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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.