Home / 13,590,459.16-18,754,836.69-7,478,887.66

Finding the Fourth Proportional to 13,590,459.16, 18,754,836.69 and 7,478,887.66

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Solution

The fourth proportional to 13,590,459.16, 18,754,836.69 and 7,478,887.66 is: 10,320,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,459.16 : 18,754,836.69 = 7,478,887.66 : x
  2. Step 2: Convert to fraction form
    13,590,459.16/18,754,836.69 = 7,478,887.66/x
  3. Step 3: Cross multiply
    13,590,459.16x = 18,754,836.69 × 7,478,887.66
  4. Step 4: Simplify right side
    13,590,459.16x = 140,265,316,686,156.27
  5. Step 5: Solve for x
    x = 140,265,316,686,156.27/13,590,459.16
  6. Step 6: Final answer
    x = 10,320,866.65

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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.