Home / 158,698,000.78-218,983,410.12-88,124,015.50

Finding the Fourth Proportional to 158,698,000.78, 218,983,410.12 and 88,124,015.50

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Solution

The fourth proportional to 158,698,000.78, 218,983,410.12 and 88,124,015.50 is: 121,600,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,698,000.78 : 218,983,410.12 = 88,124,015.50 : x
  2. Step 2: Convert to fraction form
    158,698,000.78/218,983,410.12 = 88,124,015.50/x
  3. Step 3: Cross multiply
    158,698,000.78x = 218,983,410.12 × 88,124,015.50
  4. Step 4: Simplify right side
    158,698,000.78x = 19,297,697,427,657,736
  5. Step 5: Solve for x
    x = 19,297,697,427,657,736/158,698,000.78
  6. Step 6: Final answer
    x = 121,600,129.38

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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.