Home / 38,712,020,840.72-53,420,516,223.56-21,330,391,631.44

Finding the Fourth Proportional to 38,712,020,840.72, 53,420,516,223.56 and 21,330,391,631.44

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Solution

The fourth proportional to 38,712,020,840.72, 53,420,516,223.56 and 21,330,391,631.44 is: 29,434,798,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,712,020,840.72 : 53,420,516,223.56 = 21,330,391,631.44 : x
  2. Step 2: Convert to fraction form
    38,712,020,840.72/53,420,516,223.56 = 21,330,391,631.44/x
  3. Step 3: Cross multiply
    38,712,020,840.72x = 53,420,516,223.56 × 21,330,391,631.44
  4. Step 4: Simplify right side
    38,712,020,840.72x = 1,139,480,532,202,228,809,728
  5. Step 5: Solve for x
    x = 1,139,480,532,202,228,809,728/38,712,020,840.72
  6. Step 6: Final answer
    x = 29,434,798,480.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.