Home / 30,767,281.35-42,471,921.71-19,170,574.43

Finding the Fourth Proportional to 30,767,281.35, 42,471,921.71 and 19,170,574.43

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Solution

The fourth proportional to 30,767,281.35, 42,471,921.71 and 19,170,574.43 is: 26,463,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767,281.35 : 42,471,921.71 = 19,170,574.43 : x
  2. Step 2: Convert to fraction form
    30,767,281.35/42,471,921.71 = 19,170,574.43/x
  3. Step 3: Cross multiply
    30,767,281.35x = 42,471,921.71 × 19,170,574.43
  4. Step 4: Simplify right side
    30,767,281.35x = 814,211,136,018,475.38
  5. Step 5: Solve for x
    x = 814,211,136,018,475.38/30,767,281.35
  6. Step 6: Final answer
    x = 26,463,538.55

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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.