Home / 540,735,785.40-811,103,678.10-358,982,963.40

Finding the Fourth Proportional to 540,735,785.40, 811,103,678.10 and 358,982,963.40

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Solution

The fourth proportional to 540,735,785.40, 811,103,678.10 and 358,982,963.40 is: 538,474,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,735,785.40 : 811,103,678.10 = 358,982,963.40 : x
  2. Step 2: Convert to fraction form
    540,735,785.40/811,103,678.10 = 358,982,963.40/x
  3. Step 3: Cross multiply
    540,735,785.40x = 811,103,678.10 × 358,982,963.40
  4. Step 4: Simplify right side
    540,735,785.40x = 291,172,401,988,977,664
  5. Step 5: Solve for x
    x = 291,172,401,988,977,664/540,735,785.40
  6. Step 6: Final answer
    x = 538,474,445.10

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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.