Home / 72,507,077,135.78-99,335,050,121.44-69,789,528,929.94

Finding the Fourth Proportional to 72,507,077,135.78, 99,335,050,121.44 and 69,789,528,929.94

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Solution

The fourth proportional to 72,507,077,135.78, 99,335,050,121.44 and 69,789,528,929.94 is: 95,611,995,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,507,077,135.78 : 99,335,050,121.44 = 69,789,528,929.94 : x
  2. Step 2: Convert to fraction form
    72,507,077,135.78/99,335,050,121.44 = 69,789,528,929.94/x
  3. Step 3: Cross multiply
    72,507,077,135.78x = 99,335,050,121.44 × 69,789,528,929.94
  4. Step 4: Simplify right side
    72,507,077,135.78x = 6,932,546,354,207,277,449,216
  5. Step 5: Solve for x
    x = 6,932,546,354,207,277,449,216/72,507,077,135.78
  6. Step 6: Final answer
    x = 95,611,995,794.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.