Home / 256,775,985,373.08-384,828,919,870.36-143,451,133,860.16

Finding the Fourth Proportional to 256,775,985,373.08, 384,828,919,870.36 and 143,451,133,860.16

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Solution

The fourth proportional to 256,775,985,373.08, 384,828,919,870.36 and 143,451,133,860.16 is: 214,989,516,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,775,985,373.08 : 384,828,919,870.36 = 143,451,133,860.16 : x
  2. Step 2: Convert to fraction form
    256,775,985,373.08/384,828,919,870.36 = 143,451,133,860.16/x
  3. Step 3: Cross multiply
    256,775,985,373.08x = 384,828,919,870.36 × 143,451,133,860.16
  4. Step 4: Simplify right side
    256,775,985,373.08x = 55,204,144,897,583,795,404,800
  5. Step 5: Solve for x
    x = 55,204,144,897,583,795,404,800/256,775,985,373.08
  6. Step 6: Final answer
    x = 214,989,516,318.57

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1.5x scale

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.