Home / 131,092,436,711.78-180,905,637,378.78-73,221,661,075.58

Finding the Fourth Proportional to 131,092,436,711.78, 180,905,637,378.78 and 73,221,661,075.58

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Solution

The fourth proportional to 131,092,436,711.78, 180,905,637,378.78 and 73,221,661,075.58 is: 101,044,816,917.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,092,436,711.78 : 180,905,637,378.78 = 73,221,661,075.58 : x
  2. Step 2: Convert to fraction form
    131,092,436,711.78/180,905,637,378.78 = 73,221,661,075.58/x
  3. Step 3: Cross multiply
    131,092,436,711.78x = 180,905,637,378.78 × 73,221,661,075.58
  4. Step 4: Simplify right side
    131,092,436,711.78x = 13,246,211,266,810,805,747,712
  5. Step 5: Solve for x
    x = 13,246,211,266,810,805,747,712/131,092,436,711.78
  6. Step 6: Final answer
    x = 101,044,816,917.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.