Home / 38,464,901,778.50-53,081,569,485.84-21,318,862,012.65

Finding the Fourth Proportional to 38,464,901,778.50, 53,081,569,485.84 and 21,318,862,012.65

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Solution

The fourth proportional to 38,464,901,778.50, 53,081,569,485.84 and 21,318,862,012.65 is: 29,420,032,366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,464,901,778.50 : 53,081,569,485.84 = 21,318,862,012.65 : x
  2. Step 2: Convert to fraction form
    38,464,901,778.50/53,081,569,485.84 = 21,318,862,012.65/x
  3. Step 3: Cross multiply
    38,464,901,778.50x = 53,081,569,485.84 × 21,318,862,012.65
  4. Step 4: Simplify right side
    38,464,901,778.50x = 1,131,638,655,283,303,415,808
  5. Step 5: Solve for x
    x = 1,131,638,655,283,303,415,808/38,464,901,778.50
  6. Step 6: Final answer
    x = 29,420,032,366.13

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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.