Home / 854,279,176.70-1,178,951,037.40-477,913,312.50

Finding the Fourth Proportional to 854,279,176.70, 1,178,951,037.40 and 477,913,312.50

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Solution

The fourth proportional to 854,279,176.70, 1,178,951,037.40 and 477,913,312.50 is: 659,545,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,279,176.70 : 1,178,951,037.40 = 477,913,312.50 : x
  2. Step 2: Convert to fraction form
    854,279,176.70/1,178,951,037.40 = 477,913,312.50/x
  3. Step 3: Cross multiply
    854,279,176.70x = 1,178,951,037.40 × 477,913,312.50
  4. Step 4: Simplify right side
    854,279,176.70x = 563,436,395,563,249,920
  5. Step 5: Solve for x
    x = 563,436,395,563,249,920/854,279,176.70
  6. Step 6: Final answer
    x = 659,545,978.56

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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.