Home / 528,771,205.80-793,156,808.70-426,734,533.80

Finding the Fourth Proportional to 528,771,205.80, 793,156,808.70 and 426,734,533.80

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Solution

The fourth proportional to 528,771,205.80, 793,156,808.70 and 426,734,533.80 is: 640,101,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,771,205.80 : 793,156,808.70 = 426,734,533.80 : x
  2. Step 2: Convert to fraction form
    528,771,205.80/793,156,808.70 = 426,734,533.80/x
  3. Step 3: Cross multiply
    528,771,205.80x = 793,156,808.70 × 426,734,533.80
  4. Step 4: Simplify right side
    528,771,205.80x = 338,467,400,990,890,304
  5. Step 5: Solve for x
    x = 338,467,400,990,890,304/528,771,205.80
  6. Step 6: Final answer
    x = 640,101,800.70

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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.