Home / 144,518,588.10-199,435,870.04-78,439,110.08

Finding the Fourth Proportional to 144,518,588.10, 199,435,870.04 and 78,439,110.08

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Solution

The fourth proportional to 144,518,588.10, 199,435,870.04 and 78,439,110.08 is: 108,246,090.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518,588.10 : 199,435,870.04 = 78,439,110.08 : x
  2. Step 2: Convert to fraction form
    144,518,588.10/199,435,870.04 = 78,439,110.08/x
  3. Step 3: Cross multiply
    144,518,588.10x = 199,435,870.04 × 78,439,110.08
  4. Step 4: Simplify right side
    144,518,588.10x = 15,643,572,162,578,760
  5. Step 5: Solve for x
    x = 15,643,572,162,578,760/144,518,588.10
  6. Step 6: Final answer
    x = 108,246,090.47

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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.