Home / 3,938,402,194.80-5,435,011,291.65-2,129,914,024.88

Finding the Fourth Proportional to 3,938,402,194.80, 5,435,011,291.65 and 2,129,914,024.88

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Solution

The fourth proportional to 3,938,402,194.80, 5,435,011,291.65 and 2,129,914,024.88 is: 2,939,290,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,402,194.80 : 5,435,011,291.65 = 2,129,914,024.88 : x
  2. Step 2: Convert to fraction form
    3,938,402,194.80/5,435,011,291.65 = 2,129,914,024.88/x
  3. Step 3: Cross multiply
    3,938,402,194.80x = 5,435,011,291.65 × 2,129,914,024.88
  4. Step 4: Simplify right side
    3,938,402,194.80x = 11,576,106,775,439,323,136
  5. Step 5: Solve for x
    x = 11,576,106,775,439,323,136/3,938,402,194.80
  6. Step 6: Final answer
    x = 2,939,290,149.37

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1.5x scale

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.