Home / 130,440,298.82-180,009,848.45-71,705,439.50

Finding the Fourth Proportional to 130,440,298.82, 180,009,848.45 and 71,705,439.50

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Solution

The fourth proportional to 130,440,298.82, 180,009,848.45 and 71,705,439.50 is: 98,954,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,440,298.82 : 180,009,848.45 = 71,705,439.50 : x
  2. Step 2: Convert to fraction form
    130,440,298.82/180,009,848.45 = 71,705,439.50/x
  3. Step 3: Cross multiply
    130,440,298.82x = 180,009,848.45 × 71,705,439.50
  4. Step 4: Simplify right side
    130,440,298.82x = 12,907,685,297,435,642
  5. Step 5: Solve for x
    x = 12,907,685,297,435,642/130,440,298.82
  6. Step 6: Final answer
    x = 98,954,735.72

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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.