Home / 915,007,211.01-1,262,722,739.09-497,319,371.01

Finding the Fourth Proportional to 915,007,211.01, 1,262,722,739.09 and 497,319,371.01

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Solution

The fourth proportional to 915,007,211.01, 1,262,722,739.09 and 497,319,371.01 is: 686,307,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,007,211.01 : 1,262,722,739.09 = 497,319,371.01 : x
  2. Step 2: Convert to fraction form
    915,007,211.01/1,262,722,739.09 = 497,319,371.01/x
  3. Step 3: Cross multiply
    915,007,211.01x = 1,262,722,739.09 × 497,319,371.01
  4. Step 4: Simplify right side
    915,007,211.01x = 627,976,478,361,776,512
  5. Step 5: Solve for x
    x = 627,976,478,361,776,512/915,007,211.01
  6. Step 6: Final answer
    x = 686,307,682.39

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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.