Home / 153,382,659.84-211,673,293.81-90,712,479.92

Finding the Fourth Proportional to 153,382,659.84, 211,673,293.81 and 90,712,479.92

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Solution

The fourth proportional to 153,382,659.84, 211,673,293.81 and 90,712,479.92 is: 125,186,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,382,659.84 : 211,673,293.81 = 90,712,479.92 : x
  2. Step 2: Convert to fraction form
    153,382,659.84/211,673,293.81 = 90,712,479.92/x
  3. Step 3: Cross multiply
    153,382,659.84x = 211,673,293.81 × 90,712,479.92
  4. Step 4: Simplify right side
    153,382,659.84x = 19,201,409,413,054,740
  5. Step 5: Solve for x
    x = 19,201,409,413,054,740/153,382,659.84
  6. Step 6: Final answer
    x = 125,186,311.37

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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.