Home / 1,578,936,000.55-2,368,404,000.83-430,078,656.55

Finding the Fourth Proportional to 1,578,936,000.55, 2,368,404,000.83 and 430,078,656.55

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Solution

The fourth proportional to 1,578,936,000.55, 2,368,404,000.83 and 430,078,656.55 is: 645,117,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,936,000.55 : 2,368,404,000.83 = 430,078,656.55 : x
  2. Step 2: Convert to fraction form
    1,578,936,000.55/2,368,404,000.83 = 430,078,656.55/x
  3. Step 3: Cross multiply
    1,578,936,000.55x = 2,368,404,000.83 × 430,078,656.55
  4. Step 4: Simplify right side
    1,578,936,000.55x = 1,018,600,010,842,461,056
  5. Step 5: Solve for x
    x = 1,018,600,010,842,461,056/1,578,936,000.55
  6. Step 6: Final answer
    x = 645,117,984.83

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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.