Home / 38,688,125.64-53,389,612.80-21,284,097.36

Finding the Fourth Proportional to 38,688,125.64, 53,389,612.80 and 21,284,097.36

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Solution

The fourth proportional to 38,688,125.64, 53,389,612.80 and 21,284,097.36 is: 29,372,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,688,125.64 : 53,389,612.80 = 21,284,097.36 : x
  2. Step 2: Convert to fraction form
    38,688,125.64/53,389,612.80 = 21,284,097.36/x
  3. Step 3: Cross multiply
    38,688,125.64x = 53,389,612.80 × 21,284,097.36
  4. Step 4: Simplify right side
    38,688,125.64x = 1,136,349,716,847,902
  5. Step 5: Solve for x
    x = 1,136,349,716,847,902/38,688,125.64
  6. Step 6: Final answer
    x = 29,372,054.04

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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.