Home / 127,225,871.70-190,838,807.55-45,437,101.80

Finding the Fourth Proportional to 127,225,871.70, 190,838,807.55 and 45,437,101.80

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Solution

The fourth proportional to 127,225,871.70, 190,838,807.55 and 45,437,101.80 is: 68,155,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,225,871.70 : 190,838,807.55 = 45,437,101.80 : x
  2. Step 2: Convert to fraction form
    127,225,871.70/190,838,807.55 = 45,437,101.80/x
  3. Step 3: Cross multiply
    127,225,871.70x = 190,838,807.55 × 45,437,101.80
  4. Step 4: Simplify right side
    127,225,871.70x = 8,671,162,326,039,959
  5. Step 5: Solve for x
    x = 8,671,162,326,039,959/127,225,871.70
  6. Step 6: Final answer
    x = 68,155,652.70

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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.