Home / 99,804,973.10-149,483,510.85-81,889,069.10

Finding the Fourth Proportional to 99,804,973.10, 149,483,510.85 and 81,889,069.10

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Solution

The fourth proportional to 99,804,973.10, 149,483,510.85 and 81,889,069.10 is: 122,649,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,804,973.10 : 149,483,510.85 = 81,889,069.10 : x
  2. Step 2: Convert to fraction form
    99,804,973.10/149,483,510.85 = 81,889,069.10/x
  3. Step 3: Cross multiply
    99,804,973.10x = 149,483,510.85 × 81,889,069.10
  4. Step 4: Simplify right side
    99,804,973.10x = 12,241,065,549,306,248
  5. Step 5: Solve for x
    x = 12,241,065,549,306,248/99,804,973.10
  6. Step 6: Final answer
    x = 122,649,855.70

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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.