Home / 28,736,234.07-39,688,991.80-20,930,522.16

Finding the Fourth Proportional to 28,736,234.07, 39,688,991.80 and 20,930,522.16

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Solution

The fourth proportional to 28,736,234.07, 39,688,991.80 and 20,930,522.16 is: 28,908,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736,234.07 : 39,688,991.80 = 20,930,522.16 : x
  2. Step 2: Convert to fraction form
    28,736,234.07/39,688,991.80 = 20,930,522.16/x
  3. Step 3: Cross multiply
    28,736,234.07x = 39,688,991.80 × 20,930,522.16
  4. Step 4: Simplify right side
    28,736,234.07x = 830,711,322,368,949.25
  5. Step 5: Solve for x
    x = 830,711,322,368,949.25/28,736,234.07
  6. Step 6: Final answer
    x = 28,908,148.52

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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.