Home / 70,956,830.40-106,435,245.60-19,838,767.20

Finding the Fourth Proportional to 70,956,830.40, 106,435,245.60 and 19,838,767.20

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Solution

The fourth proportional to 70,956,830.40, 106,435,245.60 and 19,838,767.20 is: 29,758,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956,830.40 : 106,435,245.60 = 19,838,767.20 : x
  2. Step 2: Convert to fraction form
    70,956,830.40/106,435,245.60 = 19,838,767.20/x
  3. Step 3: Cross multiply
    70,956,830.40x = 106,435,245.60 × 19,838,767.20
  4. Step 4: Simplify right side
    70,956,830.40x = 2,111,544,059,333,224
  5. Step 5: Solve for x
    x = 2,111,544,059,333,224/70,956,830.40
  6. Step 6: Final answer
    x = 29,758,150.80

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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.