Home / 290,861,445.60-401,534,248.32-180,888,588

Finding the Fourth Proportional to 290,861,445.60, 401,534,248.32 and 180,888,588

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Solution

The fourth proportional to 290,861,445.60, 401,534,248.32 and 180,888,588 is: 249,716,709.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,861,445.60 : 401,534,248.32 = 180,888,588 : x
  2. Step 2: Convert to fraction form
    290,861,445.60/401,534,248.32 = 180,888,588/x
  3. Step 3: Cross multiply
    290,861,445.60x = 401,534,248.32 × 180,888,588
  4. Step 4: Simplify right side
    290,861,445.60x = 72,632,963,212,246,176
  5. Step 5: Solve for x
    x = 72,632,963,212,246,176/290,861,445.60
  6. Step 6: Final answer
    x = 249,716,709.83

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1.5x scale

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.