Home / 242,979,209.80-364,484,976.27-85,393,165.18

Finding the Fourth Proportional to 242,979,209.80, 364,484,976.27 and 85,393,165.18

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Solution

The fourth proportional to 242,979,209.80, 364,484,976.27 and 85,393,165.18 is: 128,095,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,979,209.80 : 364,484,976.27 = 85,393,165.18 : x
  2. Step 2: Convert to fraction form
    242,979,209.80/364,484,976.27 = 85,393,165.18/x
  3. Step 3: Cross multiply
    242,979,209.80x = 364,484,976.27 × 85,393,165.18
  4. Step 4: Simplify right side
    242,979,209.80x = 31,124,525,784,252,492
  5. Step 5: Solve for x
    x = 31,124,525,784,252,492/242,979,209.80
  6. Step 6: Final answer
    x = 128,095,427.63

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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.