Home / 487,363,078.28-731,047,105.74-164,249,749.64

Finding the Fourth Proportional to 487,363,078.28, 731,047,105.74 and 164,249,749.64

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Solution

The fourth proportional to 487,363,078.28, 731,047,105.74 and 164,249,749.64 is: 246,375,463.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,363,078.28 : 731,047,105.74 = 164,249,749.64 : x
  2. Step 2: Convert to fraction form
    487,363,078.28/731,047,105.74 = 164,249,749.64/x
  3. Step 3: Cross multiply
    487,363,078.28x = 731,047,105.74 × 164,249,749.64
  4. Step 4: Simplify right side
    487,363,078.28x = 120,074,304,092,841,600
  5. Step 5: Solve for x
    x = 120,074,304,092,841,600/487,363,078.28
  6. Step 6: Final answer
    x = 246,375,463.07

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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.