Home / 421,808,856.60-632,713,284.90-149,179,623.60

Finding the Fourth Proportional to 421,808,856.60, 632,713,284.90 and 149,179,623.60

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Solution

The fourth proportional to 421,808,856.60, 632,713,284.90 and 149,179,623.60 is: 223,769,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,808,856.60 : 632,713,284.90 = 149,179,623.60 : x
  2. Step 2: Convert to fraction form
    421,808,856.60/632,713,284.90 = 149,179,623.60/x
  3. Step 3: Cross multiply
    421,808,856.60x = 632,713,284.90 × 149,179,623.60
  4. Step 4: Simplify right side
    421,808,856.60x = 94,387,929,688,101,552
  5. Step 5: Solve for x
    x = 94,387,929,688,101,552/421,808,856.60
  6. Step 6: Final answer
    x = 223,769,435.40

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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.