Home / 40,153,956.16-55,412,764.32-21,819,340.48

Finding the Fourth Proportional to 40,153,956.16, 55,412,764.32 and 21,819,340.48

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Solution

The fourth proportional to 40,153,956.16, 55,412,764.32 and 21,819,340.48 is: 30,110,855.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,153,956.16 : 55,412,764.32 = 21,819,340.48 : x
  2. Step 2: Convert to fraction form
    40,153,956.16/55,412,764.32 = 21,819,340.48/x
  3. Step 3: Cross multiply
    40,153,956.16x = 55,412,764.32 × 21,819,340.48
  4. Step 4: Simplify right side
    40,153,956.16x = 1,209,069,971,636,075.75
  5. Step 5: Solve for x
    x = 1,209,069,971,636,075.75/40,153,956.16
  6. Step 6: Final answer
    x = 30,110,855.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.