Home / 638,480,237.34-881,102,337.78-345,124,805.34

Finding the Fourth Proportional to 638,480,237.34, 881,102,337.78 and 345,124,805.34

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Solution

The fourth proportional to 638,480,237.34, 881,102,337.78 and 345,124,805.34 is: 476,272,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,480,237.34 : 881,102,337.78 = 345,124,805.34 : x
  2. Step 2: Convert to fraction form
    638,480,237.34/881,102,337.78 = 345,124,805.34/x
  3. Step 3: Cross multiply
    638,480,237.34x = 881,102,337.78 × 345,124,805.34
  4. Step 4: Simplify right side
    638,480,237.34x = 304,090,272,810,941,376
  5. Step 5: Solve for x
    x = 304,090,272,810,941,376/638,480,237.34
  6. Step 6: Final answer
    x = 476,272,020.69

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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.