Home / 103,621,401.60-155,432,102.40-73,363,430.40

Finding the Fourth Proportional to 103,621,401.60, 155,432,102.40 and 73,363,430.40

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Solution

The fourth proportional to 103,621,401.60, 155,432,102.40 and 73,363,430.40 is: 110,045,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621,401.60 : 155,432,102.40 = 73,363,430.40 : x
  2. Step 2: Convert to fraction form
    103,621,401.60/155,432,102.40 = 73,363,430.40/x
  3. Step 3: Cross multiply
    103,621,401.60x = 155,432,102.40 × 73,363,430.40
  4. Step 4: Simplify right side
    103,621,401.60x = 11,403,032,226,348,074
  5. Step 5: Solve for x
    x = 11,403,032,226,348,074/103,621,401.60
  6. Step 6: Final answer
    x = 110,045,145.60

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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.