Home / 51,509,346.40-77,264,019.60-21,207,138.40

Finding the Fourth Proportional to 51,509,346.40, 77,264,019.60 and 21,207,138.40

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Solution

The fourth proportional to 51,509,346.40, 77,264,019.60 and 21,207,138.40 is: 31,810,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,509,346.40 : 77,264,019.60 = 21,207,138.40 : x
  2. Step 2: Convert to fraction form
    51,509,346.40/77,264,019.60 = 21,207,138.40/x
  3. Step 3: Cross multiply
    51,509,346.40x = 77,264,019.60 × 21,207,138.40
  4. Step 4: Simplify right side
    51,509,346.40x = 1,638,548,756,997,512.50
  5. Step 5: Solve for x
    x = 1,638,548,756,997,512.50/51,509,346.40
  6. Step 6: Final answer
    x = 31,810,707.60

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1.5x scale

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.