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Finding the Third Proportional to 59,354,360 and 128,860,640

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Solution

The third proportional to 59,354,360 and 128,860,640 is: 279,761,495.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,354,360 : 128,860,640 = 128,860,640 : x
  2. Step 2: Convert to fraction form
    59,354,360/128,860,640 = 128,860,640/x
  3. Step 3: Cross multiply
    59,354,360x = 128,860,640 × 128,860,640
  4. Step 4: Simplify right side
    59,354,360x = 16,605,064,541,209,600
  5. Step 5: Solve for x
    x = 16,605,064,541,209,600/59,354,360
  6. Step 6: Final answer
    x = 279,761,495.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.