Home / 686,583,407.20-1,030,333,035.44-249,883,969.76

Finding the Fourth Proportional to 686,583,407.20, 1,030,333,035.44 and 249,883,969.76

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Solution

The fourth proportional to 686,583,407.20, 1,030,333,035.44 and 249,883,969.76 is: 374,992,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,583,407.20 : 1,030,333,035.44 = 249,883,969.76 : x
  2. Step 2: Convert to fraction form
    686,583,407.20/1,030,333,035.44 = 249,883,969.76/x
  3. Step 3: Cross multiply
    686,583,407.20x = 1,030,333,035.44 × 249,883,969.76
  4. Step 4: Simplify right side
    686,583,407.20x = 257,463,709,070,617,984
  5. Step 5: Solve for x
    x = 257,463,709,070,617,984/686,583,407.20
  6. Step 6: Final answer
    x = 374,992,617.61

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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.