Home / 279,547,416-385,757,777.88-154,092,697.92

Finding the Fourth Proportional to 279,547,416, 385,757,777.88 and 154,092,697.92

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Solution

The fourth proportional to 279,547,416, 385,757,777.88 and 154,092,697.92 is: 212,638,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,547,416 : 385,757,777.88 = 154,092,697.92 : x
  2. Step 2: Convert to fraction form
    279,547,416/385,757,777.88 = 154,092,697.92/x
  3. Step 3: Cross multiply
    279,547,416x = 385,757,777.88 × 154,092,697.92
  4. Step 4: Simplify right side
    279,547,416x = 59,442,456,737,153,296
  5. Step 5: Solve for x
    x = 59,442,456,737,153,296/279,547,416
  6. Step 6: Final answer
    x = 212,638,190.64

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1.5x scale

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.