Home / 828,174,977.40-1,240,750,811.70-673,986,228.60

Finding the Fourth Proportional to 828,174,977.40, 1,240,750,811.70 and 673,986,228.60

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Solution

The fourth proportional to 828,174,977.40, 1,240,750,811.70 and 673,986,228.60 is: 1,009,749,126.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,174,977.40 : 1,240,750,811.70 = 673,986,228.60 : x
  2. Step 2: Convert to fraction form
    828,174,977.40/1,240,750,811.70 = 673,986,228.60/x
  3. Step 3: Cross multiply
    828,174,977.40x = 1,240,750,811.70 × 673,986,228.60
  4. Step 4: Simplify right side
    828,174,977.40x = 836,248,960,210,071,808
  5. Step 5: Solve for x
    x = 836,248,960,210,071,808/828,174,977.40
  6. Step 6: Final answer
    x = 1,009,749,126.73

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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.