Home / 152,730,963.65-210,775,670.43-90,009,708.77

Finding the Fourth Proportional to 152,730,963.65, 210,775,670.43 and 90,009,708.77

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Solution

The fourth proportional to 152,730,963.65, 210,775,670.43 and 90,009,708.77 is: 124,217,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,730,963.65 : 210,775,670.43 = 90,009,708.77 : x
  2. Step 2: Convert to fraction form
    152,730,963.65/210,775,670.43 = 90,009,708.77/x
  3. Step 3: Cross multiply
    152,730,963.65x = 210,775,670.43 × 90,009,708.77
  4. Step 4: Simplify right side
    152,730,963.65x = 18,971,856,711,205,800
  5. Step 5: Solve for x
    x = 18,971,856,711,205,800/152,730,963.65
  6. Step 6: Final answer
    x = 124,217,488.44

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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.