Home / 51,009,620.09-76,402,275.62-42,155,551.80

Finding the Fourth Proportional to 51,009,620.09, 76,402,275.62 and 42,155,551.80

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Solution

The fourth proportional to 51,009,620.09, 76,402,275.62 and 42,155,551.80 is: 63,140,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009,620.09 : 76,402,275.62 = 42,155,551.80 : x
  2. Step 2: Convert to fraction form
    51,009,620.09/76,402,275.62 = 42,155,551.80/x
  3. Step 3: Cross multiply
    51,009,620.09x = 76,402,275.62 × 42,155,551.80
  4. Step 4: Simplify right side
    51,009,620.09x = 3,220,780,087,536,787
  5. Step 5: Solve for x
    x = 3,220,780,087,536,787/51,009,620.09
  6. Step 6: Final answer
    x = 63,140,640.57

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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.