Home / 100,829,912.20-151,118,897.10-73,872,075.40

Finding the Fourth Proportional to 100,829,912.20, 151,118,897.10 and 73,872,075.40

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Solution

The fourth proportional to 100,829,912.20, 151,118,897.10 and 73,872,075.40 is: 110,715,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,829,912.20 : 151,118,897.10 = 73,872,075.40 : x
  2. Step 2: Convert to fraction form
    100,829,912.20/151,118,897.10 = 73,872,075.40/x
  3. Step 3: Cross multiply
    100,829,912.20x = 151,118,897.10 × 73,872,075.40
  4. Step 4: Simplify right side
    100,829,912.20x = 11,163,466,560,936,042
  5. Step 5: Solve for x
    x = 11,163,466,560,936,042/100,829,912.20
  6. Step 6: Final answer
    x = 110,715,821.50

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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.