Home / 144,519,483.17-199,436,383.77-78,439,981.22

Finding the Fourth Proportional to 144,519,483.17, 199,436,383.77 and 78,439,981.22

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Solution

The fourth proportional to 144,519,483.17, 199,436,383.77 and 78,439,981.22 is: 108,246,901.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,519,483.17 : 199,436,383.77 = 78,439,981.22 : x
  2. Step 2: Convert to fraction form
    144,519,483.17/199,436,383.77 = 78,439,981.22/x
  3. Step 3: Cross multiply
    144,519,483.17x = 199,436,383.77 × 78,439,981.22
  4. Step 4: Simplify right side
    144,519,483.17x = 15,643,786,196,506,332
  5. Step 5: Solve for x
    x = 15,643,786,196,506,332/144,519,483.17
  6. Step 6: Final answer
    x = 108,246,901.07

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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.