Home / 142,662,557.60-213,993,836.40-91,644,221.60

Finding the Fourth Proportional to 142,662,557.60, 213,993,836.40 and 91,644,221.60

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Solution

The fourth proportional to 142,662,557.60, 213,993,836.40 and 91,644,221.60 is: 137,466,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,662,557.60 : 213,993,836.40 = 91,644,221.60 : x
  2. Step 2: Convert to fraction form
    142,662,557.60/213,993,836.40 = 91,644,221.60/x
  3. Step 3: Cross multiply
    142,662,557.60x = 213,993,836.40 × 91,644,221.60
  4. Step 4: Simplify right side
    142,662,557.60x = 19,611,298,564,075,744
  5. Step 5: Solve for x
    x = 19,611,298,564,075,744/142,662,557.60
  6. Step 6: Final answer
    x = 137,466,332.40

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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.