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Finding the Fourth Proportional to 1,658,863,649.98, 2,488,278,432.31 and 958,910,409.40

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Solution

The fourth proportional to 1,658,863,649.98, 2,488,278,432.31 and 958,910,409.40 is: 1,438,355,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658,863,649.98 : 2,488,278,432.31 = 958,910,409.40 : x
  2. Step 2: Convert to fraction form
    1,658,863,649.98/2,488,278,432.31 = 958,910,409.40/x
  3. Step 3: Cross multiply
    1,658,863,649.98x = 2,488,278,432.31 × 958,910,409.40
  4. Step 4: Simplify right side
    1,658,863,649.98x = 2,386,036,090,222,906,368
  5. Step 5: Solve for x
    x = 2,386,036,090,222,906,368/1,658,863,649.98
  6. Step 6: Final answer
    x = 1,438,355,762.54

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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.