Home / 84,185,607.51-115,332,352.34-81,038,136.93

Finding the Fourth Proportional to 84,185,607.51, 115,332,352.34 and 81,038,136.93

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Solution

The fourth proportional to 84,185,607.51, 115,332,352.34 and 81,038,136.93 is: 111,020,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,185,607.51 : 115,332,352.34 = 81,038,136.93 : x
  2. Step 2: Convert to fraction form
    84,185,607.51/115,332,352.34 = 81,038,136.93/x
  3. Step 3: Cross multiply
    84,185,607.51x = 115,332,352.34 × 81,038,136.93
  4. Step 4: Simplify right side
    84,185,607.51x = 9,346,318,960,982,736
  5. Step 5: Solve for x
    x = 9,346,318,960,982,736/84,185,607.51
  6. Step 6: Final answer
    x = 111,020,389.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.