Home / 285,667,575,314.19-394,221,318,281.41-157,209,023,931.32

Finding the Fourth Proportional to 285,667,575,314.19, 394,221,318,281.41 and 157,209,023,931.32

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Solution

The fourth proportional to 285,667,575,314.19, 394,221,318,281.41 and 157,209,023,931.32 is: 216,948,488,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,667,575,314.19 : 394,221,318,281.41 = 157,209,023,931.32 : x
  2. Step 2: Convert to fraction form
    285,667,575,314.19/394,221,318,281.41 = 157,209,023,931.32/x
  3. Step 3: Cross multiply
    285,667,575,314.19x = 394,221,318,281.41 × 157,209,023,931.32
  4. Step 4: Simplify right side
    285,667,575,314.19x = 61,975,148,659,938,699,509,760
  5. Step 5: Solve for x
    x = 61,975,148,659,938,699,509,760/285,667,575,314.19
  6. Step 6: Final answer
    x = 216,948,488,437.22

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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.