Home / 78,421,715.10-117,744,547.05-44,409,491.10

Finding the Fourth Proportional to 78,421,715.10, 117,744,547.05 and 44,409,491.10

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Solution

The fourth proportional to 78,421,715.10, 117,744,547.05 and 44,409,491.10 is: 66,677,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,421,715.10 : 117,744,547.05 = 44,409,491.10 : x
  2. Step 2: Convert to fraction form
    78,421,715.10/117,744,547.05 = 44,409,491.10/x
  3. Step 3: Cross multiply
    78,421,715.10x = 117,744,547.05 × 44,409,491.10
  4. Step 4: Simplify right side
    78,421,715.10x = 5,228,975,414,290,506
  5. Step 5: Solve for x
    x = 5,228,975,414,290,506/78,421,715.10
  6. Step 6: Final answer
    x = 66,677,646.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.