Home / 9,989,277.84-13,785,827.76-5,639,101.20

Finding the Fourth Proportional to 9,989,277.84, 13,785,827.76 and 5,639,101.20

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Solution

The fourth proportional to 9,989,277.84, 13,785,827.76 and 5,639,101.20 is: 7,782,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,277.84 : 13,785,827.76 = 5,639,101.20 : x
  2. Step 2: Convert to fraction form
    9,989,277.84/13,785,827.76 = 5,639,101.20/x
  3. Step 3: Cross multiply
    9,989,277.84x = 13,785,827.76 × 5,639,101.20
  4. Step 4: Simplify right side
    9,989,277.84x = 77,739,677,864,409.31
  5. Step 5: Solve for x
    x = 77,739,677,864,409.31/9,989,277.84
  6. Step 6: Final answer
    x = 7,782,312.11

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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.