Home / 144,585,405.24-199,528,095.39-78,506,031.30

Finding the Fourth Proportional to 144,585,405.24, 199,528,095.39 and 78,506,031.30

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Solution

The fourth proportional to 144,585,405.24, 199,528,095.39 and 78,506,031.30 is: 108,338,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,585,405.24 : 199,528,095.39 = 78,506,031.30 : x
  2. Step 2: Convert to fraction form
    144,585,405.24/199,528,095.39 = 78,506,031.30/x
  3. Step 3: Cross multiply
    144,585,405.24x = 199,528,095.39 × 78,506,031.30
  4. Step 4: Simplify right side
    144,585,405.24x = 15,664,158,901,916,724
  5. Step 5: Solve for x
    x = 15,664,158,901,916,724/144,585,405.24
  6. Step 6: Final answer
    x = 108,338,451.42

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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.