Home / 312,685,528-468,723,287.46-148,879,271.74

Finding the Fourth Proportional to 312,685,528, 468,723,287.46 and 148,879,271.74

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Solution

The fourth proportional to 312,685,528, 468,723,287.46 and 148,879,271.74 is: 223,173,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,685,528 : 468,723,287.46 = 148,879,271.74 : x
  2. Step 2: Convert to fraction form
    312,685,528/468,723,287.46 = 148,879,271.74/x
  3. Step 3: Cross multiply
    312,685,528x = 468,723,287.46 × 148,879,271.74
  4. Step 4: Simplify right side
    312,685,528x = 69,783,181,684,623,472
  5. Step 5: Solve for x
    x = 69,783,181,684,623,472/312,685,528
  6. Step 6: Final answer
    x = 223,173,685.49

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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.