Home / 383,473,418.40-575,210,127.60-153,478,000.80

Finding the Fourth Proportional to 383,473,418.40, 575,210,127.60 and 153,478,000.80

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Solution

The fourth proportional to 383,473,418.40, 575,210,127.60 and 153,478,000.80 is: 230,217,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,473,418.40 : 575,210,127.60 = 153,478,000.80 : x
  2. Step 2: Convert to fraction form
    383,473,418.40/575,210,127.60 = 153,478,000.80/x
  3. Step 3: Cross multiply
    383,473,418.40x = 575,210,127.60 × 153,478,000.80
  4. Step 4: Simplify right side
    383,473,418.40x = 88,282,100,423,960,912
  5. Step 5: Solve for x
    x = 88,282,100,423,960,912/383,473,418.40
  6. Step 6: Final answer
    x = 230,217,001.20

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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.