Home / 20,547,861.32-28,355,701.11-11,380,307.24

Finding the Fourth Proportional to 20,547,861.32, 28,355,701.11 and 11,380,307.24

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Solution

The fourth proportional to 20,547,861.32, 28,355,701.11 and 11,380,307.24 is: 15,704,631.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547,861.32 : 28,355,701.11 = 11,380,307.24 : x
  2. Step 2: Convert to fraction form
    20,547,861.32/28,355,701.11 = 11,380,307.24/x
  3. Step 3: Cross multiply
    20,547,861.32x = 28,355,701.11 × 11,380,307.24
  4. Step 4: Simplify right side
    20,547,861.32x = 322,696,590,637,409.06
  5. Step 5: Solve for x
    x = 322,696,590,637,409.06/20,547,861.32
  6. Step 6: Final answer
    x = 15,704,631.52

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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.