Home / 430,898,002.22-646,437,791.88-139,742,423.10

Finding the Fourth Proportional to 430,898,002.22, 646,437,791.88 and 139,742,423.10

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Solution

The fourth proportional to 430,898,002.22, 646,437,791.88 and 139,742,423.10 is: 209,643,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,898,002.22 : 646,437,791.88 = 139,742,423.10 : x
  2. Step 2: Convert to fraction form
    430,898,002.22/646,437,791.88 = 139,742,423.10/x
  3. Step 3: Cross multiply
    430,898,002.22x = 646,437,791.88 × 139,742,423.10
  4. Step 4: Simplify right side
    430,898,002.22x = 90,334,783,420,724,704
  5. Step 5: Solve for x
    x = 90,334,783,420,724,704/430,898,002.22
  6. Step 6: Final answer
    x = 209,643,077.84

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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.