Home / 42,899,078.40-64,312,364.16-18,619,641.60

Finding the Fourth Proportional to 42,899,078.40, 64,312,364.16 and 18,619,641.60

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Solution

The fourth proportional to 42,899,078.40, 64,312,364.16 and 18,619,641.60 is: 27,913,727.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,899,078.40 : 64,312,364.16 = 18,619,641.60 : x
  2. Step 2: Convert to fraction form
    42,899,078.40/64,312,364.16 = 18,619,641.60/x
  3. Step 3: Cross multiply
    42,899,078.40x = 64,312,364.16 × 18,619,641.60
  4. Step 4: Simplify right side
    42,899,078.40x = 1,197,473,171,107,885
  5. Step 5: Solve for x
    x = 1,197,473,171,107,885/42,899,078.40
  6. Step 6: Final answer
    x = 27,913,727.19

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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.