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Finding the Fourth Proportional to 6,506,888.89, 8,974,270.83 and 5,720,272.90

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Solution

The fourth proportional to 6,506,888.89, 8,974,270.83 and 5,720,272.90 is: 7,889,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,506,888.89 : 8,974,270.83 = 5,720,272.90 : x
  2. Step 2: Convert to fraction form
    6,506,888.89/8,974,270.83 = 5,720,272.90/x
  3. Step 3: Cross multiply
    6,506,888.89x = 8,974,270.83 × 5,720,272.90
  4. Step 4: Simplify right side
    6,506,888.89x = 51,335,278,226,109.51
  5. Step 5: Solve for x
    x = 51,335,278,226,109.51/6,506,888.89
  6. Step 6: Final answer
    x = 7,889,373.72

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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.