Home / 99,649,969.30-149,474,953.95-90,562,328.20

Finding the Fourth Proportional to 99,649,969.30, 149,474,953.95 and 90,562,328.20

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Solution

The fourth proportional to 99,649,969.30, 149,474,953.95 and 90,562,328.20 is: 135,843,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,649,969.30 : 149,474,953.95 = 90,562,328.20 : x
  2. Step 2: Convert to fraction form
    99,649,969.30/149,474,953.95 = 90,562,328.20/x
  3. Step 3: Cross multiply
    99,649,969.30x = 149,474,953.95 × 90,562,328.20
  4. Step 4: Simplify right side
    99,649,969.30x = 13,536,799,837,299,786
  5. Step 5: Solve for x
    x = 13,536,799,837,299,786/99,649,969.30
  6. Step 6: Final answer
    x = 135,843,492.30

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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.