Home / 98,742,401.60-148,113,602.40-84,129,742.40

Finding the Fourth Proportional to 98,742,401.60, 148,113,602.40 and 84,129,742.40

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Solution

The fourth proportional to 98,742,401.60, 148,113,602.40 and 84,129,742.40 is: 126,194,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,742,401.60 : 148,113,602.40 = 84,129,742.40 : x
  2. Step 2: Convert to fraction form
    98,742,401.60/148,113,602.40 = 84,129,742.40/x
  3. Step 3: Cross multiply
    98,742,401.60x = 148,113,602.40 × 84,129,742.40
  4. Step 4: Simplify right side
    98,742,401.60x = 12,460,759,215,848,024
  5. Step 5: Solve for x
    x = 12,460,759,215,848,024/98,742,401.60
  6. Step 6: Final answer
    x = 126,194,613.60

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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.