Home / 186,161,381.52-256,920,852.65-139,036,641.21

Finding the Fourth Proportional to 186,161,381.52, 256,920,852.65 and 139,036,641.21

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Solution

The fourth proportional to 186,161,381.52, 256,920,852.65 and 139,036,641.21 is: 191,884,117.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,161,381.52 : 256,920,852.65 = 139,036,641.21 : x
  2. Step 2: Convert to fraction form
    186,161,381.52/256,920,852.65 = 139,036,641.21/x
  3. Step 3: Cross multiply
    186,161,381.52x = 256,920,852.65 × 139,036,641.21
  4. Step 4: Simplify right side
    186,161,381.52x = 35,721,412,407,980,728
  5. Step 5: Solve for x
    x = 35,721,412,407,980,728/186,161,381.52
  6. Step 6: Final answer
    x = 191,884,117.51

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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.