Home / 47,029,248,078.30-70,543,872,117.45-20,856,841,710.30

Finding the Fourth Proportional to 47,029,248,078.30, 70,543,872,117.45 and 20,856,841,710.30

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Solution

The fourth proportional to 47,029,248,078.30, 70,543,872,117.45 and 20,856,841,710.30 is: 31,285,262,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,029,248,078.30 : 70,543,872,117.45 = 20,856,841,710.30 : x
  2. Step 2: Convert to fraction form
    47,029,248,078.30/70,543,872,117.45 = 20,856,841,710.30/x
  3. Step 3: Cross multiply
    47,029,248,078.30x = 70,543,872,117.45 × 20,856,841,710.30
  4. Step 4: Simplify right side
    47,029,248,078.30x = 1,471,322,374,385,300,144,128
  5. Step 5: Solve for x
    x = 1,471,322,374,385,300,144,128/47,029,248,078.30
  6. Step 6: Final answer
    x = 31,285,262,565.45

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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.