Home / 168,403,720.70-252,605,581.05-155,806,600.70

Finding the Fourth Proportional to 168,403,720.70, 252,605,581.05 and 155,806,600.70

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Solution

The fourth proportional to 168,403,720.70, 252,605,581.05 and 155,806,600.70 is: 233,709,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,403,720.70 : 252,605,581.05 = 155,806,600.70 : x
  2. Step 2: Convert to fraction form
    168,403,720.70/252,605,581.05 = 155,806,600.70/x
  3. Step 3: Cross multiply
    168,403,720.70x = 252,605,581.05 × 155,806,600.70
  4. Step 4: Simplify right side
    168,403,720.70x = 39,357,616,901,248,832
  5. Step 5: Solve for x
    x = 39,357,616,901,248,832/168,403,720.70
  6. Step 6: Final answer
    x = 233,709,901.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.