Home / 127,938,681.89-191,908,585.05-40,500,628.41

Finding the Fourth Proportional to 127,938,681.89, 191,908,585.05 and 40,500,628.41

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Solution

The fourth proportional to 127,938,681.89, 191,908,585.05 and 40,500,628.41 is: 60,751,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,938,681.89 : 191,908,585.05 = 40,500,628.41 : x
  2. Step 2: Convert to fraction form
    127,938,681.89/191,908,585.05 = 40,500,628.41/x
  3. Step 3: Cross multiply
    127,938,681.89x = 191,908,585.05 × 40,500,628.41
  4. Step 4: Simplify right side
    127,938,681.89x = 7,772,418,292,787,131
  5. Step 5: Solve for x
    x = 7,772,418,292,787,131/127,938,681.89
  6. Step 6: Final answer
    x = 60,751,120.60

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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.