Home / 99,793,971.40-149,578,982.70-56,683,827.40

Finding the Fourth Proportional to 99,793,971.40, 149,578,982.70 and 56,683,827.40

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Solution

The fourth proportional to 99,793,971.40, 149,578,982.70 and 56,683,827.40 is: 84,962,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,793,971.40 : 149,578,982.70 = 56,683,827.40 : x
  2. Step 2: Convert to fraction form
    99,793,971.40/149,578,982.70 = 56,683,827.40/x
  3. Step 3: Cross multiply
    99,793,971.40x = 149,578,982.70 × 56,683,827.40
  4. Step 4: Simplify right side
    99,793,971.40x = 8,478,709,238,034,385
  5. Step 5: Solve for x
    x = 8,478,709,238,034,385/99,793,971.40
  6. Step 6: Final answer
    x = 84,962,138.69

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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.