Home / 140,290,075.67-193,607,052.19-77,565,012.98

Finding the Fourth Proportional to 140,290,075.67, 193,607,052.19 and 77,565,012.98

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Solution

The fourth proportional to 140,290,075.67, 193,607,052.19 and 77,565,012.98 is: 107,043,448.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,290,075.67 : 193,607,052.19 = 77,565,012.98 : x
  2. Step 2: Convert to fraction form
    140,290,075.67/193,607,052.19 = 77,565,012.98/x
  3. Step 3: Cross multiply
    140,290,075.67x = 193,607,052.19 × 77,565,012.98
  4. Step 4: Simplify right side
    140,290,075.67x = 15,017,133,515,749,064
  5. Step 5: Solve for x
    x = 15,017,133,515,749,064/140,290,075.67
  6. Step 6: Final answer
    x = 107,043,448.68

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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.