Home / 145,219,746.38-200,403,254.86-80,029,650.38

Finding the Fourth Proportional to 145,219,746.38, 200,403,254.86 and 80,029,650.38

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Solution

The fourth proportional to 145,219,746.38, 200,403,254.86 and 80,029,650.38 is: 110,440,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,219,746.38 : 200,403,254.86 = 80,029,650.38 : x
  2. Step 2: Convert to fraction form
    145,219,746.38/200,403,254.86 = 80,029,650.38/x
  3. Step 3: Cross multiply
    145,219,746.38x = 200,403,254.86 × 80,029,650.38
  4. Step 4: Simplify right side
    145,219,746.38x = 16,038,202,420,257,744
  5. Step 5: Solve for x
    x = 16,038,202,420,257,744/145,219,746.38
  6. Step 6: Final answer
    x = 110,440,920.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.