Home / 427,316,971.92-589,697,421.24-231,746,683.92

Finding the Fourth Proportional to 427,316,971.92, 589,697,421.24 and 231,746,683.92

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Solution

The fourth proportional to 427,316,971.92, 589,697,421.24 and 231,746,683.92 is: 319,810,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,316,971.92 : 589,697,421.24 = 231,746,683.92 : x
  2. Step 2: Convert to fraction form
    427,316,971.92/589,697,421.24 = 231,746,683.92/x
  3. Step 3: Cross multiply
    427,316,971.92x = 589,697,421.24 × 231,746,683.92
  4. Step 4: Simplify right side
    427,316,971.92x = 136,660,421,888,545,376
  5. Step 5: Solve for x
    x = 136,660,421,888,545,376/427,316,971.92
  6. Step 6: Final answer
    x = 319,810,423.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.