Home / 19,780,784.64-29,698,355.16-10,071,920.39

Finding the Fourth Proportional to 19,780,784.64, 29,698,355.16 and 10,071,920.39

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Solution

The fourth proportional to 19,780,784.64, 29,698,355.16 and 10,071,920.39 is: 15,121,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780,784.64 : 29,698,355.16 = 10,071,920.39 : x
  2. Step 2: Convert to fraction form
    19,780,784.64/29,698,355.16 = 10,071,920.39/x
  3. Step 3: Cross multiply
    19,780,784.64x = 29,698,355.16 × 10,071,920.39
  4. Step 4: Simplify right side
    19,780,784.64x = 299,119,468,736,973.94
  5. Step 5: Solve for x
    x = 299,119,468,736,973.94/19,780,784.64
  6. Step 6: Final answer
    x = 15,121,719.09

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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.