Home / 78,506,756,156.61-117,794,386,930.30-27,491,667,998.08

Finding the Fourth Proportional to 78,506,756,156.61, 117,794,386,930.30 and 27,491,667,998.08

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Solution

The fourth proportional to 78,506,756,156.61, 117,794,386,930.30 and 27,491,667,998.08 is: 41,249,496,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,506,756,156.61 : 117,794,386,930.30 = 27,491,667,998.08 : x
  2. Step 2: Convert to fraction form
    78,506,756,156.61/117,794,386,930.30 = 27,491,667,998.08/x
  3. Step 3: Cross multiply
    78,506,756,156.61x = 117,794,386,930.30 × 27,491,667,998.08
  4. Step 4: Simplify right side
    78,506,756,156.61x = 3,238,364,177,525,652,848,640
  5. Step 5: Solve for x
    x = 3,238,364,177,525,652,848,640/78,506,756,156.61
  6. Step 6: Final answer
    x = 41,249,496,681.10

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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.