Home / 426,035,837.80-639,053,756.70-349,445,348.20

Finding the Fourth Proportional to 426,035,837.80, 639,053,756.70 and 349,445,348.20

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Solution

The fourth proportional to 426,035,837.80, 639,053,756.70 and 349,445,348.20 is: 524,168,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,035,837.80 : 639,053,756.70 = 349,445,348.20 : x
  2. Step 2: Convert to fraction form
    426,035,837.80/639,053,756.70 = 349,445,348.20/x
  3. Step 3: Cross multiply
    426,035,837.80x = 639,053,756.70 × 349,445,348.20
  4. Step 4: Simplify right side
    426,035,837.80x = 223,314,362,528,549,600
  5. Step 5: Solve for x
    x = 223,314,362,528,549,600/426,035,837.80
  6. Step 6: Final answer
    x = 524,168,022.30

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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.