Home / 12,640,360.88-17,438,734.56-7,341,153.69

Finding the Fourth Proportional to 12,640,360.88, 17,438,734.56 and 7,341,153.69

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Solution

The fourth proportional to 12,640,360.88, 17,438,734.56 and 7,341,153.69 is: 10,127,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,360.88 : 17,438,734.56 = 7,341,153.69 : x
  2. Step 2: Convert to fraction form
    12,640,360.88/17,438,734.56 = 7,341,153.69/x
  3. Step 3: Cross multiply
    12,640,360.88x = 17,438,734.56 × 7,341,153.69
  4. Step 4: Simplify right side
    12,640,360.88x = 128,020,430,564,074.53
  5. Step 5: Solve for x
    x = 128,020,430,564,074.53/12,640,360.88
  6. Step 6: Final answer
    x = 10,127,909.47

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1.5x scale

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.