Home / 378,400,005,595.44-522,195,264,176.76-215,827,886,226.96

Finding the Fourth Proportional to 378,400,005,595.44, 522,195,264,176.76 and 215,827,886,226.96

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Solution

The fourth proportional to 378,400,005,595.44, 522,195,264,176.76 and 215,827,886,226.96 is: 297,844,340,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,400,005,595.44 : 522,195,264,176.76 = 215,827,886,226.96 : x
  2. Step 2: Convert to fraction form
    378,400,005,595.44/522,195,264,176.76 = 215,827,886,226.96/x
  3. Step 3: Cross multiply
    378,400,005,595.44x = 522,195,264,176.76 × 215,827,886,226.96
  4. Step 4: Simplify right side
    378,400,005,595.44x = 112,704,300,064,999,068,401,664
  5. Step 5: Solve for x
    x = 112,704,300,064,999,068,401,664/378,400,005,595.44
  6. Step 6: Final answer
    x = 297,844,340,376.40

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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.