Home / 5,381,946,752.40-8,072,920,128.60-3,930,758,528.40

Finding the Fourth Proportional to 5,381,946,752.40, 8,072,920,128.60 and 3,930,758,528.40

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Solution

The fourth proportional to 5,381,946,752.40, 8,072,920,128.60 and 3,930,758,528.40 is: 5,896,137,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381,946,752.40 : 8,072,920,128.60 = 3,930,758,528.40 : x
  2. Step 2: Convert to fraction form
    5,381,946,752.40/8,072,920,128.60 = 3,930,758,528.40/x
  3. Step 3: Cross multiply
    5,381,946,752.40x = 8,072,920,128.60 × 3,930,758,528.40
  4. Step 4: Simplify right side
    5,381,946,752.40x = 31,732,699,644,586,475,520
  5. Step 5: Solve for x
    x = 31,732,699,644,586,475,520/5,381,946,752.40
  6. Step 6: Final answer
    x = 5,896,137,792.60

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1.5x scale

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.