Home / 387,492,275.60-534,741,835.60-211,283,173.52

Finding the Fourth Proportional to 387,492,275.60, 534,741,835.60 and 211,283,173.52

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Solution

The fourth proportional to 387,492,275.60, 534,741,835.60 and 211,283,173.52 is: 291,572,140.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,492,275.60 : 534,741,835.60 = 211,283,173.52 : x
  2. Step 2: Convert to fraction form
    387,492,275.60/534,741,835.60 = 211,283,173.52/x
  3. Step 3: Cross multiply
    387,492,275.60x = 534,741,835.60 × 211,283,173.52
  4. Step 4: Simplify right side
    387,492,275.60x = 112,981,952,039,478,128
  5. Step 5: Solve for x
    x = 112,981,952,039,478,128/387,492,275.60
  6. Step 6: Final answer
    x = 291,572,140.02

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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.