Home / 12,888,114.66-17,784,989.37-7,087,140.90

Finding the Fourth Proportional to 12,888,114.66, 17,784,989.37 and 7,087,140.90

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Solution

The fourth proportional to 12,888,114.66, 17,784,989.37 and 7,087,140.90 is: 9,779,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888,114.66 : 17,784,989.37 = 7,087,140.90 : x
  2. Step 2: Convert to fraction form
    12,888,114.66/17,784,989.37 = 7,087,140.90/x
  3. Step 3: Cross multiply
    12,888,114.66x = 17,784,989.37 × 7,087,140.90
  4. Step 4: Simplify right side
    12,888,114.66x = 126,044,725,570,192.25
  5. Step 5: Solve for x
    x = 126,044,725,570,192.25/12,888,114.66
  6. Step 6: Final answer
    x = 9,779,919.63

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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.