Home / 5,130,113.10-7,078,933.76-2,955,360.30

Finding the Fourth Proportional to 5,130,113.10, 7,078,933.76 and 2,955,360.30

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Solution

The fourth proportional to 5,130,113.10, 7,078,933.76 and 2,955,360.30 is: 4,078,038.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130,113.10 : 7,078,933.76 = 2,955,360.30 : x
  2. Step 2: Convert to fraction form
    5,130,113.10/7,078,933.76 = 2,955,360.30/x
  3. Step 3: Cross multiply
    5,130,113.10x = 7,078,933.76 × 2,955,360.30
  4. Step 4: Simplify right side
    5,130,113.10x = 20,920,799,785,856.93
  5. Step 5: Solve for x
    x = 20,920,799,785,856.93/5,130,113.10
  6. Step 6: Final answer
    x = 4,078,038.71

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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.