Home / 9,989,995.12-13,786,217.76-5,406,349.84

Finding the Fourth Proportional to 9,989,995.12, 13,786,217.76 and 5,406,349.84

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Solution

The fourth proportional to 9,989,995.12, 13,786,217.76 and 5,406,349.84 is: 7,460,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,995.12 : 13,786,217.76 = 5,406,349.84 : x
  2. Step 2: Convert to fraction form
    9,989,995.12/13,786,217.76 = 5,406,349.84/x
  3. Step 3: Cross multiply
    9,989,995.12x = 13,786,217.76 × 5,406,349.84
  4. Step 4: Simplify right side
    9,989,995.12x = 74,533,116,180,981.16
  5. Step 5: Solve for x
    x = 74,533,116,180,981.16/9,989,995.12
  6. Step 6: Final answer
    x = 7,460,776.03

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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.