Home / 52,138,511.40-78,207,378.30-15,746,831.40

Finding the Fourth Proportional to 52,138,511.40, 78,207,378.30 and 15,746,831.40

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Solution

The fourth proportional to 52,138,511.40, 78,207,378.30 and 15,746,831.40 is: 23,620,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,138,511.40 : 78,207,378.30 = 15,746,831.40 : x
  2. Step 2: Convert to fraction form
    52,138,511.40/78,207,378.30 = 15,746,831.40/x
  3. Step 3: Cross multiply
    52,138,511.40x = 78,207,378.30 × 15,746,831.40
  4. Step 4: Simplify right side
    52,138,511.40x = 1,231,518,400,326,118.50
  5. Step 5: Solve for x
    x = 1,231,518,400,326,118.50/52,138,511.40
  6. Step 6: Final answer
    x = 23,620,129.67

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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.