Home / 65,239,499,863.58-90,038,347,413.23-39,518,025,079.03

Finding the Fourth Proportional to 65,239,499,863.58, 90,038,347,413.23 and 39,518,025,079.03

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Solution

The fourth proportional to 65,239,499,863.58, 90,038,347,413.23 and 39,518,025,079.03 is: 54,539,622,139.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,239,499,863.58 : 90,038,347,413.23 = 39,518,025,079.03 : x
  2. Step 2: Convert to fraction form
    65,239,499,863.58/90,038,347,413.23 = 39,518,025,079.03/x
  3. Step 3: Cross multiply
    65,239,499,863.58x = 90,038,347,413.23 × 39,518,025,079.03
  4. Step 4: Simplify right side
    65,239,499,863.58x = 3,558,137,671,150,438,711,296
  5. Step 5: Solve for x
    x = 3,558,137,671,150,438,711,296/65,239,499,863.58
  6. Step 6: Final answer
    x = 54,539,622,139.82

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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.