Home / 74,855,124.60-112,320,011.70-42,531,847.80

Finding the Fourth Proportional to 74,855,124.60, 112,320,011.70 and 42,531,847.80

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Solution

The fourth proportional to 74,855,124.60, 112,320,011.70 and 42,531,847.80 is: 63,818,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,855,124.60 : 112,320,011.70 = 42,531,847.80 : x
  2. Step 2: Convert to fraction form
    74,855,124.60/112,320,011.70 = 42,531,847.80/x
  3. Step 3: Cross multiply
    74,855,124.60x = 112,320,011.70 × 42,531,847.80
  4. Step 4: Simplify right side
    74,855,124.60x = 4,777,177,642,518,619
  5. Step 5: Solve for x
    x = 4,777,177,642,518,619/74,855,124.60
  6. Step 6: Final answer
    x = 63,818,979.24

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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.