Home / 144,146,501.71-198,921,186.51-78,065,480.23

Finding the Fourth Proportional to 144,146,501.71, 198,921,186.51 and 78,065,480.23

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Solution

The fourth proportional to 144,146,501.71, 198,921,186.51 and 78,065,480.23 is: 107,729,828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,146,501.71 : 198,921,186.51 = 78,065,480.23 : x
  2. Step 2: Convert to fraction form
    144,146,501.71/198,921,186.51 = 78,065,480.23/x
  3. Step 3: Cross multiply
    144,146,501.71x = 198,921,186.51 × 78,065,480.23
  4. Step 4: Simplify right side
    144,146,501.71x = 15,528,877,952,824,548
  5. Step 5: Solve for x
    x = 15,528,877,952,824,548/144,146,501.71
  6. Step 6: Final answer
    x = 107,729,828.81

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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.