Home / 13,506,428.32-18,640,644.96-7,703,877.76

Finding the Fourth Proportional to 13,506,428.32, 18,640,644.96 and 7,703,877.76

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Solution

The fourth proportional to 13,506,428.32, 18,640,644.96 and 7,703,877.76 is: 10,632,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506,428.32 : 18,640,644.96 = 7,703,877.76 : x
  2. Step 2: Convert to fraction form
    13,506,428.32/18,640,644.96 = 7,703,877.76/x
  3. Step 3: Cross multiply
    13,506,428.32x = 18,640,644.96 × 7,703,877.76
  4. Step 4: Simplify right side
    13,506,428.32x = 143,605,250,139,400.09
  5. Step 5: Solve for x
    x = 143,605,250,139,400.09/13,506,428.32
  6. Step 6: Final answer
    x = 10,632,363.10

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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.