Home / 13,278,747,070.98-18,324,688,814.37-7,639,849,825.20

Finding the Fourth Proportional to 13,278,747,070.98, 18,324,688,814.37 and 7,639,849,825.20

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Solution

The fourth proportional to 13,278,747,070.98, 18,324,688,814.37 and 7,639,849,825.20 is: 10,543,003,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278,747,070.98 : 18,324,688,814.37 = 7,639,849,825.20 : x
  2. Step 2: Convert to fraction form
    13,278,747,070.98/18,324,688,814.37 = 7,639,849,825.20/x
  3. Step 3: Cross multiply
    13,278,747,070.98x = 18,324,688,814.37 × 7,639,849,825.20
  4. Step 4: Simplify right side
    13,278,747,070.98x = 139,997,870,635,309,023,232
  5. Step 5: Solve for x
    x = 139,997,870,635,309,023,232/13,278,747,070.98
  6. Step 6: Final answer
    x = 10,543,003,032.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.