Home / 5,281,947.09-7,919,946.32-1,686,869.01

Finding the Fourth Proportional to 5,281,947.09, 7,919,946.32 and 1,686,869.01

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Solution

The fourth proportional to 5,281,947.09, 7,919,946.32 and 1,686,869.01 is: 2,529,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281,947.09 : 7,919,946.32 = 1,686,869.01 : x
  2. Step 2: Convert to fraction form
    5,281,947.09/7,919,946.32 = 1,686,869.01/x
  3. Step 3: Cross multiply
    5,281,947.09x = 7,919,946.32 × 1,686,869.01
  4. Step 4: Simplify right side
    5,281,947.09x = 13,359,911,999,637.20
  5. Step 5: Solve for x
    x = 13,359,911,999,637.20/5,281,947.09
  6. Step 6: Final answer
    x = 2,529,353.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.