Home / 827,141,701.20-1,240,712,551.80-764,006,510.40

Finding the Fourth Proportional to 827,141,701.20, 1,240,712,551.80 and 764,006,510.40

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Solution

The fourth proportional to 827,141,701.20, 1,240,712,551.80 and 764,006,510.40 is: 1,146,009,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,141,701.20 : 1,240,712,551.80 = 764,006,510.40 : x
  2. Step 2: Convert to fraction form
    827,141,701.20/1,240,712,551.80 = 764,006,510.40/x
  3. Step 3: Cross multiply
    827,141,701.20x = 1,240,712,551.80 × 764,006,510.40
  4. Step 4: Simplify right side
    827,141,701.20x = 947,912,467,110,197,120
  5. Step 5: Solve for x
    x = 947,912,467,110,197,120/827,141,701.20
  6. Step 6: Final answer
    x = 1,146,009,765.60

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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.