Home / 356,537,042.64-491,903,506.26-215,355,510.36

Finding the Fourth Proportional to 356,537,042.64, 491,903,506.26 and 215,355,510.36

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Solution

The fourth proportional to 356,537,042.64, 491,903,506.26 and 215,355,510.36 is: 297,119,563.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,537,042.64 : 491,903,506.26 = 215,355,510.36 : x
  2. Step 2: Convert to fraction form
    356,537,042.64/491,903,506.26 = 215,355,510.36/x
  3. Step 3: Cross multiply
    356,537,042.64x = 491,903,506.26 × 215,355,510.36
  4. Step 4: Simplify right side
    356,537,042.64x = 105,934,130,638,495,760
  5. Step 5: Solve for x
    x = 105,934,130,638,495,760/356,537,042.64
  6. Step 6: Final answer
    x = 297,119,563.94

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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.