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Finding the Fourth Proportional to 653,512,430.70, 917,213,228.10 and 653,512,430.70

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Solution

The fourth proportional to 653,512,430.70, 917,213,228.10 and 653,512,430.70 is: 917,213,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,512,430.70 : 917,213,228.10 = 653,512,430.70 : x
  2. Step 2: Convert to fraction form
    653,512,430.70/917,213,228.10 = 653,512,430.70/x
  3. Step 3: Cross multiply
    653,512,430.70x = 917,213,228.10 × 653,512,430.70
  4. Step 4: Simplify right side
    653,512,430.70x = 599,410,246,165,824,640
  5. Step 5: Solve for x
    x = 599,410,246,165,824,640/653,512,430.70
  6. Step 6: Final answer
    x = 917,213,228.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.