Home / 285,205,780.40-427,837,672.22-98,435,415.80

Finding the Fourth Proportional to 285,205,780.40, 427,837,672.22 and 98,435,415.80

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Solution

The fourth proportional to 285,205,780.40, 427,837,672.22 and 98,435,415.80 is: 147,663,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,205,780.40 : 427,837,672.22 = 98,435,415.80 : x
  2. Step 2: Convert to fraction form
    285,205,780.40/427,837,672.22 = 98,435,415.80/x
  3. Step 3: Cross multiply
    285,205,780.40x = 427,837,672.22 × 98,435,415.80
  4. Step 4: Simplify right side
    285,205,780.40x = 42,114,379,159,879,808
  5. Step 5: Solve for x
    x = 42,114,379,159,879,808/285,205,780.40
  6. Step 6: Final answer
    x = 147,663,133.27

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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.