Home / 13,506,990.79-18,639,653.05-7,312,037.33

Finding the Fourth Proportional to 13,506,990.79, 18,639,653.05 and 7,312,037.33

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Solution

The fourth proportional to 13,506,990.79, 18,639,653.05 and 7,312,037.33 is: 10,090,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506,990.79 : 18,639,653.05 = 7,312,037.33 : x
  2. Step 2: Convert to fraction form
    13,506,990.79/18,639,653.05 = 7,312,037.33/x
  3. Step 3: Cross multiply
    13,506,990.79x = 18,639,653.05 × 7,312,037.33
  4. Step 4: Simplify right side
    13,506,990.79x = 136,293,838,948,167.39
  5. Step 5: Solve for x
    x = 136,293,838,948,167.39/13,506,990.79
  6. Step 6: Final answer
    x = 10,090,614.64

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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.