Home / 378,756,258.90-523,044,622.47-358,121,879.88

Finding the Fourth Proportional to 378,756,258.90, 523,044,622.47 and 358,121,879.88

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Solution

The fourth proportional to 378,756,258.90, 523,044,622.47 and 358,121,879.88 is: 494,549,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,756,258.90 : 523,044,622.47 = 358,121,879.88 : x
  2. Step 2: Convert to fraction form
    378,756,258.90/523,044,622.47 = 358,121,879.88/x
  3. Step 3: Cross multiply
    378,756,258.90x = 523,044,622.47 × 358,121,879.88
  4. Step 4: Simplify right side
    378,756,258.90x = 187,313,723,460,081,312
  5. Step 5: Solve for x
    x = 187,313,723,460,081,312/378,756,258.90
  6. Step 6: Final answer
    x = 494,549,513.20

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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.