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Finding the Fourth Proportional to 786,996,015.80, 1,180,494,023.70 and 775,516,890.20

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Solution

The fourth proportional to 786,996,015.80, 1,180,494,023.70 and 775,516,890.20 is: 1,163,275,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,996,015.80 : 1,180,494,023.70 = 775,516,890.20 : x
  2. Step 2: Convert to fraction form
    786,996,015.80/1,180,494,023.70 = 775,516,890.20/x
  3. Step 3: Cross multiply
    786,996,015.80x = 1,180,494,023.70 × 775,516,890.20
  4. Step 4: Simplify right side
    786,996,015.80x = 915,493,054,159,509,248
  5. Step 5: Solve for x
    x = 915,493,054,159,509,248/786,996,015.80
  6. Step 6: Final answer
    x = 1,163,275,335.30

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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.