Home / 338,463,409.40-507,695,114.10-308,736,279.80

Finding the Fourth Proportional to 338,463,409.40, 507,695,114.10 and 308,736,279.80

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Solution

The fourth proportional to 338,463,409.40, 507,695,114.10 and 308,736,279.80 is: 463,104,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,463,409.40 : 507,695,114.10 = 308,736,279.80 : x
  2. Step 2: Convert to fraction form
    338,463,409.40/507,695,114.10 = 308,736,279.80/x
  3. Step 3: Cross multiply
    338,463,409.40x = 507,695,114.10 × 308,736,279.80
  4. Step 4: Simplify right side
    338,463,409.40x = 156,743,900,799,870,528
  5. Step 5: Solve for x
    x = 156,743,900,799,870,528/338,463,409.40
  6. Step 6: Final answer
    x = 463,104,419.70

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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.