Home / 9,989,970.71-13,786,154.03-5,639,094.59

Finding the Fourth Proportional to 9,989,970.71, 13,786,154.03 and 5,639,094.59

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Solution

The fourth proportional to 9,989,970.71, 13,786,154.03 and 5,639,094.59 is: 7,781,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,970.71 : 13,786,154.03 = 5,639,094.59 : x
  2. Step 2: Convert to fraction form
    9,989,970.71/13,786,154.03 = 5,639,094.59/x
  3. Step 3: Cross multiply
    9,989,970.71x = 13,786,154.03 × 5,639,094.59
  4. Step 4: Simplify right side
    9,989,970.71x = 77,741,426,552,646.67
  5. Step 5: Solve for x
    x = 77,741,426,552,646.67/9,989,970.71
  6. Step 6: Final answer
    x = 7,781,947.40

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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.