Home / 485,424,683.60-728,137,025.40-162,308,555.60

Finding the Fourth Proportional to 485,424,683.60, 728,137,025.40 and 162,308,555.60

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Solution

The fourth proportional to 485,424,683.60, 728,137,025.40 and 162,308,555.60 is: 243,462,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,424,683.60 : 728,137,025.40 = 162,308,555.60 : x
  2. Step 2: Convert to fraction form
    485,424,683.60/728,137,025.40 = 162,308,555.60/x
  3. Step 3: Cross multiply
    485,424,683.60x = 728,137,025.40 × 162,308,555.60
  4. Step 4: Simplify right side
    485,424,683.60x = 118,182,868,871,554,512
  5. Step 5: Solve for x
    x = 118,182,868,871,554,512/485,424,683.60
  6. Step 6: Final answer
    x = 243,462,833.40

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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.