Home / 127,766,681.40-191,650,022.10-86,952,012.60

Finding the Fourth Proportional to 127,766,681.40, 191,650,022.10 and 86,952,012.60

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Solution

The fourth proportional to 127,766,681.40, 191,650,022.10 and 86,952,012.60 is: 130,428,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766,681.40 : 191,650,022.10 = 86,952,012.60 : x
  2. Step 2: Convert to fraction form
    127,766,681.40/191,650,022.10 = 86,952,012.60/x
  3. Step 3: Cross multiply
    127,766,681.40x = 191,650,022.10 × 86,952,012.60
  4. Step 4: Simplify right side
    127,766,681.40x = 16,664,355,136,429,476
  5. Step 5: Solve for x
    x = 16,664,355,136,429,476/127,766,681.40
  6. Step 6: Final answer
    x = 130,428,018.90

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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.