Home / 152,391,426-210,304,080.20-82,780,790.64

Finding the Fourth Proportional to 152,391,426, 210,304,080.20 and 82,780,790.64

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Solution

The fourth proportional to 152,391,426, 210,304,080.20 and 82,780,790.64 is: 114,239,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,391,426 : 210,304,080.20 = 82,780,790.64 : x
  2. Step 2: Convert to fraction form
    152,391,426/210,304,080.20 = 82,780,790.64/x
  3. Step 3: Cross multiply
    152,391,426x = 210,304,080.20 × 82,780,790.64
  4. Step 4: Simplify right side
    152,391,426x = 17,409,138,033,773,968
  5. Step 5: Solve for x
    x = 17,409,138,033,773,968/152,391,426
  6. Step 6: Final answer
    x = 114,239,616.30

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1.5x scale

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.