Home / 910,236,784.72-1,256,128,946.41-492,553,552

Finding the Fourth Proportional to 910,236,784.72, 1,256,128,946.41 and 492,553,552

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Solution

The fourth proportional to 910,236,784.72, 1,256,128,946.41 and 492,553,552 is: 679,725,083.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,236,784.72 : 1,256,128,946.41 = 492,553,552 : x
  2. Step 2: Convert to fraction form
    910,236,784.72/1,256,128,946.41 = 492,553,552/x
  3. Step 3: Cross multiply
    910,236,784.72x = 1,256,128,946.41 × 492,553,552
  4. Step 4: Simplify right side
    910,236,784.72x = 618,710,774,324,263,168
  5. Step 5: Solve for x
    x = 618,710,774,324,263,168/910,236,784.72
  6. Step 6: Final answer
    x = 679,725,083.31

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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.