Home / 144,924,639.84-199,996,872.72-78,845,612.12

Finding the Fourth Proportional to 144,924,639.84, 199,996,872.72 and 78,845,612.12

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Solution

The fourth proportional to 144,924,639.84, 199,996,872.72 and 78,845,612.12 is: 108,807,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,924,639.84 : 199,996,872.72 = 78,845,612.12 : x
  2. Step 2: Convert to fraction form
    144,924,639.84/199,996,872.72 = 78,845,612.12/x
  3. Step 3: Cross multiply
    144,924,639.84x = 199,996,872.72 × 78,845,612.12
  4. Step 4: Simplify right side
    144,924,639.84x = 15,768,875,851,694,130
  5. Step 5: Solve for x
    x = 15,768,875,851,694,130/144,924,639.84
  6. Step 6: Final answer
    x = 108,807,417.90

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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.