Home / 302,160,079.85-415,973,616.80-288,277,512.32

Finding the Fourth Proportional to 302,160,079.85, 415,973,616.80 and 288,277,512.32

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Solution

The fourth proportional to 302,160,079.85, 415,973,616.80 and 288,277,512.32 is: 396,861,953.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,160,079.85 : 415,973,616.80 = 288,277,512.32 : x
  2. Step 2: Convert to fraction form
    302,160,079.85/415,973,616.80 = 288,277,512.32/x
  3. Step 3: Cross multiply
    302,160,079.85x = 415,973,616.80 × 288,277,512.32
  4. Step 4: Simplify right side
    302,160,079.85x = 119,915,839,438,335,712
  5. Step 5: Solve for x
    x = 119,915,839,438,335,712/302,160,079.85
  6. Step 6: Final answer
    x = 396,861,953.11

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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.