Home / 13,590,439.66-18,754,809.78-7,478,868.16

Finding the Fourth Proportional to 13,590,439.66, 18,754,809.78 and 7,478,868.16

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Solution

The fourth proportional to 13,590,439.66, 18,754,809.78 and 7,478,868.16 is: 10,320,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,439.66 : 18,754,809.78 = 7,478,868.16 : x
  2. Step 2: Convert to fraction form
    13,590,439.66/18,754,809.78 = 7,478,868.16/x
  3. Step 3: Cross multiply
    13,590,439.66x = 18,754,809.78 × 7,478,868.16
  4. Step 4: Simplify right side
    13,590,439.66x = 140,264,749,710,498.61
  5. Step 5: Solve for x
    x = 140,264,749,710,498.61/13,590,439.66
  6. Step 6: Final answer
    x = 10,320,839.74

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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.