Home / 85,968,173.40-128,952,260.10-57,270,359.40

Finding the Fourth Proportional to 85,968,173.40, 128,952,260.10 and 57,270,359.40

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Solution

The fourth proportional to 85,968,173.40, 128,952,260.10 and 57,270,359.40 is: 85,905,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968,173.40 : 128,952,260.10 = 57,270,359.40 : x
  2. Step 2: Convert to fraction form
    85,968,173.40/128,952,260.10 = 57,270,359.40/x
  3. Step 3: Cross multiply
    85,968,173.40x = 128,952,260.10 × 57,270,359.40
  4. Step 4: Simplify right side
    85,968,173.40x = 7,385,142,281,369,279
  5. Step 5: Solve for x
    x = 7,385,142,281,369,279/85,968,173.40
  6. Step 6: Final answer
    x = 85,905,539.10

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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.