Home / 40,166,098,878.60-55,427,551,975.89-21,855,232,159.65

Finding the Fourth Proportional to 40,166,098,878.60, 55,427,551,975.89 and 21,855,232,159.65

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Solution

The fourth proportional to 40,166,098,878.60, 55,427,551,975.89 and 21,855,232,159.65 is: 30,159,314,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,166,098,878.60 : 55,427,551,975.89 = 21,855,232,159.65 : x
  2. Step 2: Convert to fraction form
    40,166,098,878.60/55,427,551,975.89 = 21,855,232,159.65/x
  3. Step 3: Cross multiply
    40,166,098,878.60x = 55,427,551,975.89 × 21,855,232,159.65
  4. Step 4: Simplify right side
    40,166,098,878.60x = 1,211,382,016,474,142,998,528
  5. Step 5: Solve for x
    x = 1,211,382,016,474,142,998,528/40,166,098,878.60
  6. Step 6: Final answer
    x = 30,159,314,703.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.