Home / 152,986,988.30-211,116,681.52-83,370,948.62

Finding the Fourth Proportional to 152,986,988.30, 211,116,681.52 and 83,370,948.62

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Solution

The fourth proportional to 152,986,988.30, 211,116,681.52 and 83,370,948.62 is: 115,048,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,986,988.30 : 211,116,681.52 = 83,370,948.62 : x
  2. Step 2: Convert to fraction form
    152,986,988.30/211,116,681.52 = 83,370,948.62/x
  3. Step 3: Cross multiply
    152,986,988.30x = 211,116,681.52 × 83,370,948.62
  4. Step 4: Simplify right side
    152,986,988.30x = 17,600,998,006,564,812
  5. Step 5: Solve for x
    x = 17,600,998,006,564,812/152,986,988.30
  6. Step 6: Final answer
    x = 115,048,986.86

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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.