Home / 85,968,276.40-128,952,414.60-57,270,462.40

Finding the Fourth Proportional to 85,968,276.40, 128,952,414.60 and 57,270,462.40

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Solution

The fourth proportional to 85,968,276.40, 128,952,414.60 and 57,270,462.40 is: 85,905,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968,276.40 : 128,952,414.60 = 57,270,462.40 : x
  2. Step 2: Convert to fraction form
    85,968,276.40/128,952,414.60 = 57,270,462.40/x
  3. Step 3: Cross multiply
    85,968,276.40x = 128,952,414.60 × 57,270,462.40
  4. Step 4: Simplify right side
    85,968,276.40x = 7,385,164,411,738,511
  5. Step 5: Solve for x
    x = 7,385,164,411,738,511/85,968,276.40
  6. Step 6: Final answer
    x = 85,905,693.60

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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.