Home / 91,376,570.80-137,064,856.20-87,345,492.40

Finding the Fourth Proportional to 91,376,570.80, 137,064,856.20 and 87,345,492.40

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Solution

The fourth proportional to 91,376,570.80, 137,064,856.20 and 87,345,492.40 is: 131,018,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,376,570.80 : 137,064,856.20 = 87,345,492.40 : x
  2. Step 2: Convert to fraction form
    91,376,570.80/137,064,856.20 = 87,345,492.40/x
  3. Step 3: Cross multiply
    91,376,570.80x = 137,064,856.20 × 87,345,492.40
  4. Step 4: Simplify right side
    91,376,570.80x = 11,971,997,355,524,192
  5. Step 5: Solve for x
    x = 11,971,997,355,524,192/91,376,570.80
  6. Step 6: Final answer
    x = 131,018,238.60

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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.