Home / 145,206,934.40-217,810,401.60-68,679,430.40

Finding the Fourth Proportional to 145,206,934.40, 217,810,401.60 and 68,679,430.40

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Solution

The fourth proportional to 145,206,934.40, 217,810,401.60 and 68,679,430.40 is: 103,019,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,206,934.40 : 217,810,401.60 = 68,679,430.40 : x
  2. Step 2: Convert to fraction form
    145,206,934.40/217,810,401.60 = 68,679,430.40/x
  3. Step 3: Cross multiply
    145,206,934.40x = 217,810,401.60 × 68,679,430.40
  4. Step 4: Simplify right side
    145,206,934.40x = 14,959,094,317,083,250
  5. Step 5: Solve for x
    x = 14,959,094,317,083,250/145,206,934.40
  6. Step 6: Final answer
    x = 103,019,145.60

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1.5x scale

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.