Home / 158,477,787-218,606,690.57-99,647,312.04

Finding the Fourth Proportional to 158,477,787, 218,606,690.57 and 99,647,312.04

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Solution

The fourth proportional to 158,477,787, 218,606,690.57 and 99,647,312.04 is: 137,455,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,477,787 : 218,606,690.57 = 99,647,312.04 : x
  2. Step 2: Convert to fraction form
    158,477,787/218,606,690.57 = 99,647,312.04/x
  3. Step 3: Cross multiply
    158,477,787x = 218,606,690.57 × 99,647,312.04
  4. Step 4: Simplify right side
    158,477,787x = 21,783,569,108,762,280
  5. Step 5: Solve for x
    x = 21,783,569,108,762,280/158,477,787
  6. Step 6: Final answer
    x = 137,455,030.90

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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.