Home / 80,705,585,150.55-121,011,542,431.20-38,210,125,651.47

Finding the Fourth Proportional to 80,705,585,150.55, 121,011,542,431.20 and 38,210,125,651.47

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Solution

The fourth proportional to 80,705,585,150.55, 121,011,542,431.20 and 38,210,125,651.47 is: 57,293,014,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,705,585,150.55 : 121,011,542,431.20 = 38,210,125,651.47 : x
  2. Step 2: Convert to fraction form
    80,705,585,150.55/121,011,542,431.20 = 38,210,125,651.47/x
  3. Step 3: Cross multiply
    80,705,585,150.55x = 121,011,542,431.20 × 38,210,125,651.47
  4. Step 4: Simplify right side
    80,705,585,150.55x = 4,623,866,241,574,345,637,888
  5. Step 5: Solve for x
    x = 4,623,866,241,574,345,637,888/80,705,585,150.55
  6. Step 6: Final answer
    x = 57,293,014,268.45

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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.