Home / 145,011,635.04-200,121,336.36-78,928,939.26

Finding the Fourth Proportional to 145,011,635.04, 200,121,336.36 and 78,928,939.26

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Solution

The fourth proportional to 145,011,635.04, 200,121,336.36 and 78,928,939.26 is: 108,924,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,011,635.04 : 200,121,336.36 = 78,928,939.26 : x
  2. Step 2: Convert to fraction form
    145,011,635.04/200,121,336.36 = 78,928,939.26/x
  3. Step 3: Cross multiply
    145,011,635.04x = 200,121,336.36 × 78,928,939.26
  4. Step 4: Simplify right side
    145,011,635.04x = 15,795,364,802,188,472
  5. Step 5: Solve for x
    x = 15,795,364,802,188,472/145,011,635.04
  6. Step 6: Final answer
    x = 108,924,810.05

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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.