Home / 678,266,989.60-1,017,400,484.40-167,663,725.60

Finding the Fourth Proportional to 678,266,989.60, 1,017,400,484.40 and 167,663,725.60

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Solution

The fourth proportional to 678,266,989.60, 1,017,400,484.40 and 167,663,725.60 is: 251,495,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,266,989.60 : 1,017,400,484.40 = 167,663,725.60 : x
  2. Step 2: Convert to fraction form
    678,266,989.60/1,017,400,484.40 = 167,663,725.60/x
  3. Step 3: Cross multiply
    678,266,989.60x = 1,017,400,484.40 × 167,663,725.60
  4. Step 4: Simplify right side
    678,266,989.60x = 170,581,155,641,748,672
  5. Step 5: Solve for x
    x = 170,581,155,641,748,672/678,266,989.60
  6. Step 6: Final answer
    x = 251,495,588.40

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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.