Home / 105,615,477.40-158,423,216.10-69,335,771.80

Finding the Fourth Proportional to 105,615,477.40, 158,423,216.10 and 69,335,771.80

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Solution

The fourth proportional to 105,615,477.40, 158,423,216.10 and 69,335,771.80 is: 104,003,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,615,477.40 : 158,423,216.10 = 69,335,771.80 : x
  2. Step 2: Convert to fraction form
    105,615,477.40/158,423,216.10 = 69,335,771.80/x
  3. Step 3: Cross multiply
    105,615,477.40x = 158,423,216.10 × 69,335,771.80
  4. Step 4: Simplify right side
    105,615,477.40x = 10,984,395,959,331,686
  5. Step 5: Solve for x
    x = 10,984,395,959,331,686/105,615,477.40
  6. Step 6: Final answer
    x = 104,003,657.70

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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.