Home / 105,885,328.30-158,827,992.45-69,605,622.70

Finding the Fourth Proportional to 105,885,328.30, 158,827,992.45 and 69,605,622.70

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Solution

The fourth proportional to 105,885,328.30, 158,827,992.45 and 69,605,622.70 is: 104,408,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,885,328.30 : 158,827,992.45 = 69,605,622.70 : x
  2. Step 2: Convert to fraction form
    105,885,328.30/158,827,992.45 = 69,605,622.70/x
  3. Step 3: Cross multiply
    105,885,328.30x = 158,827,992.45 × 69,605,622.70
  4. Step 4: Simplify right side
    105,885,328.30x = 11,055,321,316,673,148
  5. Step 5: Solve for x
    x = 11,055,321,316,673,148/105,885,328.30
  6. Step 6: Final answer
    x = 104,408,434.05

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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.