Home / 142,662,541.60-213,993,812.40-91,644,205.60

Finding the Fourth Proportional to 142,662,541.60, 213,993,812.40 and 91,644,205.60

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Solution

The fourth proportional to 142,662,541.60, 213,993,812.40 and 91,644,205.60 is: 137,466,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,662,541.60 : 213,993,812.40 = 91,644,205.60 : x
  2. Step 2: Convert to fraction form
    142,662,541.60/213,993,812.40 = 91,644,205.60/x
  3. Step 3: Cross multiply
    142,662,541.60x = 213,993,812.40 × 91,644,205.60
  4. Step 4: Simplify right side
    142,662,541.60x = 19,611,292,940,713,428
  5. Step 5: Solve for x
    x = 19,611,292,940,713,428/142,662,541.60
  6. Step 6: Final answer
    x = 137,466,308.40

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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.