Home / 28,736,235.07-39,688,993.18-20,930,523.16

Finding the Fourth Proportional to 28,736,235.07, 39,688,993.18 and 20,930,523.16

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Solution

The fourth proportional to 28,736,235.07, 39,688,993.18 and 20,930,523.16 is: 28,908,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736,235.07 : 39,688,993.18 = 20,930,523.16 : x
  2. Step 2: Convert to fraction form
    28,736,235.07/39,688,993.18 = 20,930,523.16/x
  3. Step 3: Cross multiply
    28,736,235.07x = 39,688,993.18 × 20,930,523.16
  4. Step 4: Simplify right side
    28,736,235.07x = 830,711,390,951,072
  5. Step 5: Solve for x
    x = 830,711,390,951,072/28,736,235.07
  6. Step 6: Final answer
    x = 28,908,149.90

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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.