Home / 748,224,280.80-1,122,336,421.20-613,855,000.80

Finding the Fourth Proportional to 748,224,280.80, 1,122,336,421.20 and 613,855,000.80

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Solution

The fourth proportional to 748,224,280.80, 1,122,336,421.20 and 613,855,000.80 is: 920,782,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,224,280.80 : 1,122,336,421.20 = 613,855,000.80 : x
  2. Step 2: Convert to fraction form
    748,224,280.80/1,122,336,421.20 = 613,855,000.80/x
  3. Step 3: Cross multiply
    748,224,280.80x = 1,122,336,421.20 × 613,855,000.80
  4. Step 4: Simplify right side
    748,224,280.80x = 688,951,824,733,595,136
  5. Step 5: Solve for x
    x = 688,951,824,733,595,136/748,224,280.80
  6. Step 6: Final answer
    x = 920,782,501.20

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Double scale
Find fourth proportional to 748,224,281.80, 1,122,336,422.70 and 613,855,001.80
Similar ratio
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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.