Home / 285,370,424.16-393,813,200.88-154,990,232.16

Finding the Fourth Proportional to 285,370,424.16, 393,813,200.88 and 154,990,232.16

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Solution

The fourth proportional to 285,370,424.16, 393,813,200.88 and 154,990,232.16 is: 213,887,615.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,370,424.16 : 393,813,200.88 = 154,990,232.16 : x
  2. Step 2: Convert to fraction form
    285,370,424.16/393,813,200.88 = 154,990,232.16/x
  3. Step 3: Cross multiply
    285,370,424.16x = 393,813,200.88 × 154,990,232.16
  4. Step 4: Simplify right side
    285,370,424.16x = 61,037,199,432,063,912
  5. Step 5: Solve for x
    x = 61,037,199,432,063,912/285,370,424.16
  6. Step 6: Final answer
    x = 213,887,615.06

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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.