Home / 645,302,260,648.75-890,595,207,855.50-367,272,423,011.52

Finding the Fourth Proportional to 645,302,260,648.75, 890,595,207,855.50 and 367,272,423,011.52

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Solution

The fourth proportional to 645,302,260,648.75, 890,595,207,855.50 and 367,272,423,011.52 is: 506,880,387,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,302,260,648.75 : 890,595,207,855.50 = 367,272,423,011.52 : x
  2. Step 2: Convert to fraction form
    645,302,260,648.75/890,595,207,855.50 = 367,272,423,011.52/x
  3. Step 3: Cross multiply
    645,302,260,648.75x = 890,595,207,855.50 × 367,272,423,011.52
  4. Step 4: Simplify right side
    645,302,260,648.75x = 327,091,059,911,537,809,424,384
  5. Step 5: Solve for x
    x = 327,091,059,911,537,809,424,384/645,302,260,648.75
  6. Step 6: Final answer
    x = 506,880,387,467.88

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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.