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Finding the Fourth Proportional to 662,526,363, 914,354,403.66 and 398,293,897.80

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Solution

The fourth proportional to 662,526,363, 914,354,403.66 and 398,293,897.80 is: 549,686,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,526,363 : 914,354,403.66 = 398,293,897.80 : x
  2. Step 2: Convert to fraction form
    662,526,363/914,354,403.66 = 398,293,897.80/x
  3. Step 3: Cross multiply
    662,526,363x = 914,354,403.66 × 398,293,897.80
  4. Step 4: Simplify right side
    662,526,363x = 364,181,779,404,336,000
  5. Step 5: Solve for x
    x = 364,181,779,404,336,000/662,526,363
  6. Step 6: Final answer
    x = 549,686,472.48

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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.