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Finding the Third Proportional to 153,918,255 and 238,530,916.69

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Solution

The third proportional to 153,918,255 and 238,530,916.69 is: 369,657,245.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,918,255 : 238,530,916.69 = 238,530,916.69 : x
  2. Step 2: Convert to fraction form
    153,918,255/238,530,916.69 = 238,530,916.69/x
  3. Step 3: Cross multiply
    153,918,255x = 238,530,916.69 × 238,530,916.69
  4. Step 4: Simplify right side
    153,918,255x = 56,896,998,215,779,064
  5. Step 5: Solve for x
    x = 56,896,998,215,779,064/153,918,255
  6. Step 6: Final answer
    x = 369,657,245.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.