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Finding the Third Proportional to 292,779,175 and 390,328,677

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Solution

The third proportional to 292,779,175 and 390,328,677 is: 520,380,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,779,175 : 390,328,677 = 390,328,677 : x
  2. Step 2: Convert to fraction form
    292,779,175/390,328,677 = 390,328,677/x
  3. Step 3: Cross multiply
    292,779,175x = 390,328,677 × 390,328,677
  4. Step 4: Simplify right side
    292,779,175x = 152,356,476,088,570,336
  5. Step 5: Solve for x
    x = 152,356,476,088,570,336/292,779,175
  6. Step 6: Final answer
    x = 520,380,167.37

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.