Home / 86,232,750.40-129,367,096.80-28,742,881.60

Finding the Fourth Proportional to 86,232,750.40, 129,367,096.80 and 28,742,881.60

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Solution

The fourth proportional to 86,232,750.40, 129,367,096.80 and 28,742,881.60 is: 43,120,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,232,750.40 : 129,367,096.80 = 28,742,881.60 : x
  2. Step 2: Convert to fraction form
    86,232,750.40/129,367,096.80 = 28,742,881.60/x
  3. Step 3: Cross multiply
    86,232,750.40x = 129,367,096.80 × 28,742,881.60
  4. Step 4: Simplify right side
    86,232,750.40x = 3,718,383,146,258,139
  5. Step 5: Solve for x
    x = 3,718,383,146,258,139/86,232,750.40
  6. Step 6: Final answer
    x = 43,120,312.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.