Home / 430,897,727.83-646,437,379.67-139,742,147.95

Finding the Fourth Proportional to 430,897,727.83, 646,437,379.67 and 139,742,147.95

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Solution

The fourth proportional to 430,897,727.83, 646,437,379.67 and 139,742,147.95 is: 209,642,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,897,727.83 : 646,437,379.67 = 139,742,147.95 : x
  2. Step 2: Convert to fraction form
    430,897,727.83/646,437,379.67 = 139,742,147.95/x
  3. Step 3: Cross multiply
    430,897,727.83x = 646,437,379.67 × 139,742,147.95
  4. Step 4: Simplify right side
    430,897,727.83x = 90,334,547,950,255,456
  5. Step 5: Solve for x
    x = 90,334,547,950,255,456/430,897,727.83
  6. Step 6: Final answer
    x = 209,642,664.87

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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.