Home / 78,612,119,941.60-117,918,179,912.40-25,553,050,501.60

Finding the Fourth Proportional to 78,612,119,941.60, 117,918,179,912.40 and 25,553,050,501.60

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Solution

The fourth proportional to 78,612,119,941.60, 117,918,179,912.40 and 25,553,050,501.60 is: 38,329,575,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,612,119,941.60 : 117,918,179,912.40 = 25,553,050,501.60 : x
  2. Step 2: Convert to fraction form
    78,612,119,941.60/117,918,179,912.40 = 25,553,050,501.60/x
  3. Step 3: Cross multiply
    78,612,119,941.60x = 117,918,179,912.40 × 25,553,050,501.60
  4. Step 4: Simplify right side
    78,612,119,941.60x = 3,013,169,206,358,311,436,288
  5. Step 5: Solve for x
    x = 3,013,169,206,358,311,436,288/78,612,119,941.60
  6. Step 6: Final answer
    x = 38,329,575,752.40

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1.5x scale

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.