Home / 99,792,129.40-149,576,219.70-56,681,985.40

Finding the Fourth Proportional to 99,792,129.40, 149,576,219.70 and 56,681,985.40

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Solution

The fourth proportional to 99,792,129.40, 149,576,219.70 and 56,681,985.40 is: 84,959,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,792,129.40 : 149,576,219.70 = 56,681,985.40 : x
  2. Step 2: Convert to fraction form
    99,792,129.40/149,576,219.70 = 56,681,985.40/x
  3. Step 3: Cross multiply
    99,792,129.40x = 149,576,219.70 × 56,681,985.40
  4. Step 4: Simplify right side
    99,792,129.40x = 8,478,277,101,222,591
  5. Step 5: Solve for x
    x = 8,478,277,101,222,591/99,792,129.40
  6. Step 6: Final answer
    x = 84,959,376.58

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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.