Home / 578,775,128.40-868,162,692.60-147,930,814.80

Finding the Fourth Proportional to 578,775,128.40, 868,162,692.60 and 147,930,814.80

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Solution

The fourth proportional to 578,775,128.40, 868,162,692.60 and 147,930,814.80 is: 221,896,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,775,128.40 : 868,162,692.60 = 147,930,814.80 : x
  2. Step 2: Convert to fraction form
    578,775,128.40/868,162,692.60 = 147,930,814.80/x
  3. Step 3: Cross multiply
    578,775,128.40x = 868,162,692.60 × 147,930,814.80
  4. Step 4: Simplify right side
    578,775,128.40x = 128,428,014,495,279,952
  5. Step 5: Solve for x
    x = 128,428,014,495,279,952/578,775,128.40
  6. Step 6: Final answer
    x = 221,896,222.20

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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.