Home / 118,871,886.70-178,307,830.05-42,202,665.10

Finding the Fourth Proportional to 118,871,886.70, 178,307,830.05 and 42,202,665.10

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Solution

The fourth proportional to 118,871,886.70, 178,307,830.05 and 42,202,665.10 is: 63,303,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,871,886.70 : 178,307,830.05 = 42,202,665.10 : x
  2. Step 2: Convert to fraction form
    118,871,886.70/178,307,830.05 = 42,202,665.10/x
  3. Step 3: Cross multiply
    118,871,886.70x = 178,307,830.05 × 42,202,665.10
  4. Step 4: Simplify right side
    118,871,886.70x = 7,525,065,636,307,867
  5. Step 5: Solve for x
    x = 7,525,065,636,307,867/118,871,886.70
  6. Step 6: Final answer
    x = 63,303,997.65

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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.