Home / 910,127,236.23-1,255,966,644.38-492,430,356.63

Finding the Fourth Proportional to 910,127,236.23, 1,255,966,644.38 and 492,430,356.63

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Solution

The fourth proportional to 910,127,236.23, 1,255,966,644.38 and 492,430,356.63 is: 679,549,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,127,236.23 : 1,255,966,644.38 = 492,430,356.63 : x
  2. Step 2: Convert to fraction form
    910,127,236.23/1,255,966,644.38 = 492,430,356.63/x
  3. Step 3: Cross multiply
    910,127,236.23x = 1,255,966,644.38 × 492,430,356.63
  4. Step 4: Simplify right side
    910,127,236.23x = 618,476,102,604,965,632
  5. Step 5: Solve for x
    x = 618,476,102,604,965,632/910,127,236.23
  6. Step 6: Final answer
    x = 679,549,054.23

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1.5x scale

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.