Home / 78,506,756,156.86-117,794,386,930.68-27,491,667,998.34

Finding the Fourth Proportional to 78,506,756,156.86, 117,794,386,930.68 and 27,491,667,998.34

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Solution

The fourth proportional to 78,506,756,156.86, 117,794,386,930.68 and 27,491,667,998.34 is: 41,249,496,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,506,756,156.86 : 117,794,386,930.68 = 27,491,667,998.34 : x
  2. Step 2: Convert to fraction form
    78,506,756,156.86/117,794,386,930.68 = 27,491,667,998.34/x
  3. Step 3: Cross multiply
    78,506,756,156.86x = 117,794,386,930.68 × 27,491,667,998.34
  4. Step 4: Simplify right side
    78,506,756,156.86x = 3,238,364,177,565,665,460,224
  5. Step 5: Solve for x
    x = 3,238,364,177,565,665,460,224/78,506,756,156.86
  6. Step 6: Final answer
    x = 41,249,496,681.47

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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.