Home / 154,395,875.12-213,070,009.46-83,834,459.33

Finding the Fourth Proportional to 154,395,875.12, 213,070,009.46 and 83,834,459.33

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Solution

The fourth proportional to 154,395,875.12, 213,070,009.46 and 83,834,459.33 is: 115,693,563.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,395,875.12 : 213,070,009.46 = 83,834,459.33 : x
  2. Step 2: Convert to fraction form
    154,395,875.12/213,070,009.46 = 83,834,459.33/x
  3. Step 3: Cross multiply
    154,395,875.12x = 213,070,009.46 × 83,834,459.33
  4. Step 4: Simplify right side
    154,395,875.12x = 17,862,609,041,032,564
  5. Step 5: Solve for x
    x = 17,862,609,041,032,564/154,395,875.12
  6. Step 6: Final answer
    x = 115,693,563.88

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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.