Home / 51,785,281.85-77,688,155.64-18,996,155.16

Finding the Fourth Proportional to 51,785,281.85, 77,688,155.64 and 18,996,155.16

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Solution

The fourth proportional to 51,785,281.85, 77,688,155.64 and 18,996,155.16 is: 28,497,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,785,281.85 : 77,688,155.64 = 18,996,155.16 : x
  2. Step 2: Convert to fraction form
    51,785,281.85/77,688,155.64 = 18,996,155.16/x
  3. Step 3: Cross multiply
    51,785,281.85x = 77,688,155.64 × 18,996,155.16
  4. Step 4: Simplify right side
    51,785,281.85x = 1,475,776,258,851,764.25
  5. Step 5: Solve for x
    x = 1,475,776,258,851,764.25/51,785,281.85
  6. Step 6: Final answer
    x = 28,497,986.42

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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.