Home / 518,870,576.68-716,057,457.09-283,931,139.40

Finding the Fourth Proportional to 518,870,576.68, 716,057,457.09 and 283,931,139.40

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Solution

The fourth proportional to 518,870,576.68, 716,057,457.09 and 283,931,139.40 is: 391,833,761.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,870,576.68 : 716,057,457.09 = 283,931,139.40 : x
  2. Step 2: Convert to fraction form
    518,870,576.68/716,057,457.09 = 283,931,139.40/x
  3. Step 3: Cross multiply
    518,870,576.68x = 716,057,457.09 × 283,931,139.40
  4. Step 4: Simplify right side
    518,870,576.68x = 203,311,009,667,430,304
  5. Step 5: Solve for x
    x = 203,311,009,667,430,304/518,870,576.68
  6. Step 6: Final answer
    x = 391,833,761.26

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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.