Home / 81,492,355.90-122,196,543.45-30,348,048.70

Finding the Fourth Proportional to 81,492,355.90, 122,196,543.45 and 30,348,048.70

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Solution

The fourth proportional to 81,492,355.90, 122,196,543.45 and 30,348,048.70 is: 45,506,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492,355.90 : 122,196,543.45 = 30,348,048.70 : x
  2. Step 2: Convert to fraction form
    81,492,355.90/122,196,543.45 = 30,348,048.70/x
  3. Step 3: Cross multiply
    81,492,355.90x = 122,196,543.45 × 30,348,048.70
  4. Step 4: Simplify right side
    81,492,355.90x = 3,708,426,651,592,266
  5. Step 5: Solve for x
    x = 3,708,426,651,592,266/81,492,355.90
  6. Step 6: Final answer
    x = 45,506,435.67

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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.