Home / 611,923,875.70-917,885,813.55-490,991,523.70

Finding the Fourth Proportional to 611,923,875.70, 917,885,813.55 and 490,991,523.70

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Solution

The fourth proportional to 611,923,875.70, 917,885,813.55 and 490,991,523.70 is: 736,487,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,923,875.70 : 917,885,813.55 = 490,991,523.70 : x
  2. Step 2: Convert to fraction form
    611,923,875.70/917,885,813.55 = 490,991,523.70/x
  3. Step 3: Cross multiply
    611,923,875.70x = 917,885,813.55 × 490,991,523.70
  4. Step 4: Simplify right side
    611,923,875.70x = 450,674,154,177,528,576
  5. Step 5: Solve for x
    x = 450,674,154,177,528,576/611,923,875.70
  6. Step 6: Final answer
    x = 736,487,285.55

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Double scale
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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.