Home / 90,255,769,881.18-124,551,286,830.59-49,609,812,437.92

Finding the Fourth Proportional to 90,255,769,881.18, 124,551,286,830.59 and 49,609,812,437.92

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Solution

The fourth proportional to 90,255,769,881.18, 124,551,286,830.59 and 49,609,812,437.92 is: 68,460,620,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,255,769,881.18 : 124,551,286,830.59 = 49,609,812,437.92 : x
  2. Step 2: Convert to fraction form
    90,255,769,881.18/124,551,286,830.59 = 49,609,812,437.92/x
  3. Step 3: Cross multiply
    90,255,769,881.18x = 124,551,286,830.59 × 49,609,812,437.92
  4. Step 4: Simplify right side
    90,255,769,881.18x = 6,178,965,978,567,144,374,272
  5. Step 5: Solve for x
    x = 6,178,965,978,567,144,374,272/90,255,769,881.18
  6. Step 6: Final answer
    x = 68,460,620,154.28

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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.