Home / 826,884,811.68-1,140,742,514.16-492,169,639.20

Finding the Fourth Proportional to 826,884,811.68, 1,140,742,514.16 and 492,169,639.20

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Solution

The fourth proportional to 826,884,811.68, 1,140,742,514.16 and 492,169,639.20 is: 678,980,704.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,884,811.68 : 1,140,742,514.16 = 492,169,639.20 : x
  2. Step 2: Convert to fraction form
    826,884,811.68/1,140,742,514.16 = 492,169,639.20/x
  3. Step 3: Cross multiply
    826,884,811.68x = 1,140,742,514.16 × 492,169,639.20
  4. Step 4: Simplify right side
    826,884,811.68x = 561,438,831,614,228,096
  5. Step 5: Solve for x
    x = 561,438,831,614,228,096/826,884,811.68
  6. Step 6: Final answer
    x = 678,980,704.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.