Home / 39,281,934.44-54,210,758.90-21,878,287.40

Finding the Fourth Proportional to 39,281,934.44, 54,210,758.90 and 21,878,287.40

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Solution

The fourth proportional to 39,281,934.44, 54,210,758.90 and 21,878,287.40 is: 30,192,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281,934.44 : 54,210,758.90 = 21,878,287.40 : x
  2. Step 2: Convert to fraction form
    39,281,934.44/54,210,758.90 = 21,878,287.40/x
  3. Step 3: Cross multiply
    39,281,934.44x = 54,210,758.90 × 21,878,287.40
  4. Step 4: Simplify right side
    39,281,934.44x = 1,186,038,563,386,307.75
  5. Step 5: Solve for x
    x = 1,186,038,563,386,307.75/39,281,934.44
  6. Step 6: Final answer
    x = 30,192,977.52

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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.