Home / 158,271,208.31-218,426,384.32-99,584,178.68

Finding the Fourth Proportional to 158,271,208.31, 218,426,384.32 and 99,584,178.68

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Solution

The fourth proportional to 158,271,208.31, 218,426,384.32 and 99,584,178.68 is: 137,433,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,271,208.31 : 218,426,384.32 = 99,584,178.68 : x
  2. Step 2: Convert to fraction form
    158,271,208.31/218,426,384.32 = 99,584,178.68/x
  3. Step 3: Cross multiply
    158,271,208.31x = 218,426,384.32 × 99,584,178.68
  4. Step 4: Simplify right side
    158,271,208.31x = 21,751,812,084,549,232
  5. Step 5: Solve for x
    x = 21,751,812,084,549,232/158,271,208.31
  6. Step 6: Final answer
    x = 137,433,790.50

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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.