Home / 85,819,983.40-128,630,442.30-34,668,418.60

Finding the Fourth Proportional to 85,819,983.40, 128,630,442.30 and 34,668,418.60

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Solution

The fourth proportional to 85,819,983.40, 128,630,442.30 and 34,668,418.60 is: 51,962,419.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,819,983.40 : 128,630,442.30 = 34,668,418.60 : x
  2. Step 2: Convert to fraction form
    85,819,983.40/128,630,442.30 = 34,668,418.60/x
  3. Step 3: Cross multiply
    85,819,983.40x = 128,630,442.30 × 34,668,418.60
  4. Step 4: Simplify right side
    85,819,983.40x = 4,459,414,018,359,547
  5. Step 5: Solve for x
    x = 4,459,414,018,359,547/85,819,983.40
  6. Step 6: Final answer
    x = 51,962,419.96

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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.