Home / 85,421,124,018.24-128,156,565,659.19-38,246,565,499.83

Finding the Fourth Proportional to 85,421,124,018.24, 128,156,565,659.19 and 38,246,565,499.83

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Solution

The fourth proportional to 85,421,124,018.24, 128,156,565,659.19 and 38,246,565,499.83 is: 57,380,987,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,421,124,018.24 : 128,156,565,659.19 = 38,246,565,499.83 : x
  2. Step 2: Convert to fraction form
    85,421,124,018.24/128,156,565,659.19 = 38,246,565,499.83/x
  3. Step 3: Cross multiply
    85,421,124,018.24x = 128,156,565,659.19 × 38,246,565,499.83
  4. Step 4: Simplify right side
    85,421,124,018.24x = 4,901,548,482,717,475,143,680
  5. Step 5: Solve for x
    x = 4,901,548,482,717,475,143,680/85,421,124,018.24
  6. Step 6: Final answer
    x = 57,380,987,888.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.