Home / 70,540,085.76-105,604,579.84-52,424,494.08

Finding the Fourth Proportional to 70,540,085.76, 105,604,579.84 and 52,424,494.08

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Solution

The fourth proportional to 70,540,085.76, 105,604,579.84 and 52,424,494.08 is: 78,483,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,540,085.76 : 105,604,579.84 = 52,424,494.08 : x
  2. Step 2: Convert to fraction form
    70,540,085.76/105,604,579.84 = 52,424,494.08/x
  3. Step 3: Cross multiply
    70,540,085.76x = 105,604,579.84 × 52,424,494.08
  4. Step 4: Simplify right side
    70,540,085.76x = 5,536,266,670,642,967
  5. Step 5: Solve for x
    x = 5,536,266,670,642,967/70,540,085.76
  6. Step 6: Final answer
    x = 78,483,979.87

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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.