Home / 152,838,159.68-210,862,858.20-99,945,830.36

Finding the Fourth Proportional to 152,838,159.68, 210,862,858.20 and 99,945,830.36

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Solution

The fourth proportional to 152,838,159.68, 210,862,858.20 and 99,945,830.36 is: 137,890,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,838,159.68 : 210,862,858.20 = 99,945,830.36 : x
  2. Step 2: Convert to fraction form
    152,838,159.68/210,862,858.20 = 99,945,830.36/x
  3. Step 3: Cross multiply
    152,838,159.68x = 210,862,858.20 × 99,945,830.36
  4. Step 4: Simplify right side
    152,838,159.68x = 21,074,863,453,827,620
  5. Step 5: Solve for x
    x = 21,074,863,453,827,620/152,838,159.68
  6. Step 6: Final answer
    x = 137,890,062.92

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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.