Home / 585,626,319.36-878,139,247.68-309,426,065.28

Finding the Fourth Proportional to 585,626,319.36, 878,139,247.68 and 309,426,065.28

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Solution

The fourth proportional to 585,626,319.36, 878,139,247.68 and 309,426,065.28 is: 463,980,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,626,319.36 : 878,139,247.68 = 309,426,065.28 : x
  2. Step 2: Convert to fraction form
    585,626,319.36/878,139,247.68 = 309,426,065.28/x
  3. Step 3: Cross multiply
    585,626,319.36x = 878,139,247.68 × 309,426,065.28
  4. Step 4: Simplify right side
    585,626,319.36x = 271,719,172,177,561,728
  5. Step 5: Solve for x
    x = 271,719,172,177,561,728/585,626,319.36
  6. Step 6: Final answer
    x = 463,980,465.35

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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.