Home / 38,728,360.04-53,433,142.88-21,980,407.01

Finding the Fourth Proportional to 38,728,360.04, 53,433,142.88 and 21,980,407.01

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Solution

The fourth proportional to 38,728,360.04, 53,433,142.88 and 21,980,407.01 is: 30,326,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728,360.04 : 53,433,142.88 = 21,980,407.01 : x
  2. Step 2: Convert to fraction form
    38,728,360.04/53,433,142.88 = 21,980,407.01/x
  3. Step 3: Cross multiply
    38,728,360.04x = 53,433,142.88 × 21,980,407.01
  4. Step 4: Simplify right side
    38,728,360.04x = 1,174,482,227,948,815.75
  5. Step 5: Solve for x
    x = 1,174,482,227,948,815.75/38,728,360.04
  6. Step 6: Final answer
    x = 30,326,154.45

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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.