Home / 99,567,215.40-149,173,875.90-85,411,439.40

Finding the Fourth Proportional to 99,567,215.40, 149,173,875.90 and 85,411,439.40

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Solution

The fourth proportional to 99,567,215.40, 149,173,875.90 and 85,411,439.40 is: 127,965,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,567,215.40 : 149,173,875.90 = 85,411,439.40 : x
  2. Step 2: Convert to fraction form
    99,567,215.40/149,173,875.90 = 85,411,439.40/x
  3. Step 3: Cross multiply
    99,567,215.40x = 149,173,875.90 × 85,411,439.40
  4. Step 4: Simplify right side
    99,567,215.40x = 12,741,155,461,495,972
  5. Step 5: Solve for x
    x = 12,741,155,461,495,972/99,567,215.40
  6. Step 6: Final answer
    x = 127,965,369.03

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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.