Home / 931,615,373.28-1,396,898,697.36-309,497,547.84

Finding the Fourth Proportional to 931,615,373.28, 1,396,898,697.36 and 309,497,547.84

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Solution

The fourth proportional to 931,615,373.28, 1,396,898,697.36 and 309,497,547.84 is: 464,072,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,615,373.28 : 1,396,898,697.36 = 309,497,547.84 : x
  2. Step 2: Convert to fraction form
    931,615,373.28/1,396,898,697.36 = 309,497,547.84/x
  3. Step 3: Cross multiply
    931,615,373.28x = 1,396,898,697.36 × 309,497,547.84
  4. Step 4: Simplify right side
    931,615,373.28x = 432,336,721,413,810,240
  5. Step 5: Solve for x
    x = 432,336,721,413,810,240/931,615,373.28
  6. Step 6: Final answer
    x = 464,072,120.12

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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.