Home / 476,847,916.80-714,705,004.80-428,097,062.40

Finding the Fourth Proportional to 476,847,916.80, 714,705,004.80 and 428,097,062.40

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Solution

The fourth proportional to 476,847,916.80, 714,705,004.80 and 428,097,062.40 is: 641,636,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,847,916.80 : 714,705,004.80 = 428,097,062.40 : x
  2. Step 2: Convert to fraction form
    476,847,916.80/714,705,004.80 = 428,097,062.40/x
  3. Step 3: Cross multiply
    476,847,916.80x = 714,705,004.80 × 428,097,062.40
  4. Step 4: Simplify right side
    476,847,916.80x = 305,963,113,037,457,856
  5. Step 5: Solve for x
    x = 305,963,113,037,457,856/476,847,916.80
  6. Step 6: Final answer
    x = 641,636,677.56

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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.