Home / 28,009,630,627.36-38,653,174,706.70-15,149,284,947.52

Finding the Fourth Proportional to 28,009,630,627.36, 38,653,174,706.70 and 15,149,284,947.52

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Solution

The fourth proportional to 28,009,630,627.36, 38,653,174,706.70 and 15,149,284,947.52 is: 20,905,950,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009,630,627.36 : 38,653,174,706.70 = 15,149,284,947.52 : x
  2. Step 2: Convert to fraction form
    28,009,630,627.36/38,653,174,706.70 = 15,149,284,947.52/x
  3. Step 3: Cross multiply
    28,009,630,627.36x = 38,653,174,706.70 × 15,149,284,947.52
  4. Step 4: Simplify right side
    28,009,630,627.36x = 585,567,957,758,071,078,912
  5. Step 5: Solve for x
    x = 585,567,957,758,071,078,912/28,009,630,627.36
  6. Step 6: Final answer
    x = 20,905,950,726.32

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Double scale
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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.