Home / 154,063,122.96-212,609,678.40-83,500,987.08

Finding the Fourth Proportional to 154,063,122.96, 212,609,678.40 and 83,500,987.08

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Solution

The fourth proportional to 154,063,122.96, 212,609,678.40 and 83,500,987.08 is: 115,232,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,063,122.96 : 212,609,678.40 = 83,500,987.08 : x
  2. Step 2: Convert to fraction form
    154,063,122.96/212,609,678.40 = 83,500,987.08/x
  3. Step 3: Cross multiply
    154,063,122.96x = 212,609,678.40 × 83,500,987.08
  4. Step 4: Simplify right side
    154,063,122.96x = 17,753,118,009,161,356
  5. Step 5: Solve for x
    x = 17,753,118,009,161,356/154,063,122.96
  6. Step 6: Final answer
    x = 115,232,754.39

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1.5x scale

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.