Home / 291,057,618.60-436,586,427.90-145,513,643.40

Finding the Fourth Proportional to 291,057,618.60, 436,586,427.90 and 145,513,643.40

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Solution

The fourth proportional to 291,057,618.60, 436,586,427.90 and 145,513,643.40 is: 218,270,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,057,618.60 : 436,586,427.90 = 145,513,643.40 : x
  2. Step 2: Convert to fraction form
    291,057,618.60/436,586,427.90 = 145,513,643.40/x
  3. Step 3: Cross multiply
    291,057,618.60x = 436,586,427.90 × 145,513,643.40
  4. Step 4: Simplify right side
    291,057,618.60x = 63,529,281,782,720,408
  5. Step 5: Solve for x
    x = 63,529,281,782,720,408/291,057,618.60
  6. Step 6: Final answer
    x = 218,270,465.10

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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.