Home / 163,520,521.80-245,280,782.70-127,240,816.20

Finding the Fourth Proportional to 163,520,521.80, 245,280,782.70 and 127,240,816.20

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Solution

The fourth proportional to 163,520,521.80, 245,280,782.70 and 127,240,816.20 is: 190,861,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,520,521.80 : 245,280,782.70 = 127,240,816.20 : x
  2. Step 2: Convert to fraction form
    163,520,521.80/245,280,782.70 = 127,240,816.20/x
  3. Step 3: Cross multiply
    163,520,521.80x = 245,280,782.70 × 127,240,816.20
  4. Step 4: Simplify right side
    163,520,521.80x = 31,209,726,988,922,840
  5. Step 5: Solve for x
    x = 31,209,726,988,922,840/163,520,521.80
  6. Step 6: Final answer
    x = 190,861,224.30

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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.