Home / 12,989,545.02-17,925,607.02-7,188,726.78

Finding the Fourth Proportional to 12,989,545.02, 17,925,607.02 and 7,188,726.78

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Solution

The fourth proportional to 12,989,545.02, 17,925,607.02 and 7,188,726.78 is: 9,920,462.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,545.02 : 17,925,607.02 = 7,188,726.78 : x
  2. Step 2: Convert to fraction form
    12,989,545.02/17,925,607.02 = 7,188,726.78/x
  3. Step 3: Cross multiply
    12,989,545.02x = 17,925,607.02 × 7,188,726.78
  4. Step 4: Simplify right side
    12,989,545.02x = 128,862,291,232,430
  5. Step 5: Solve for x
    x = 128,862,291,232,430/12,989,545.02
  6. Step 6: Final answer
    x = 9,920,462.27

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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.