Home / 70,311,903.40-105,467,855.10-69,864,005.80

Finding the Fourth Proportional to 70,311,903.40, 105,467,855.10 and 69,864,005.80

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Solution

The fourth proportional to 70,311,903.40, 105,467,855.10 and 69,864,005.80 is: 104,796,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,311,903.40 : 105,467,855.10 = 69,864,005.80 : x
  2. Step 2: Convert to fraction form
    70,311,903.40/105,467,855.10 = 69,864,005.80/x
  3. Step 3: Cross multiply
    70,311,903.40x = 105,467,855.10 × 69,864,005.80
  4. Step 4: Simplify right side
    70,311,903.40x = 7,368,406,840,419,959
  5. Step 5: Solve for x
    x = 7,368,406,840,419,959/70,311,903.40
  6. Step 6: Final answer
    x = 104,796,008.70

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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.