Home / 1,350,980,607.90-1,863,392,139.26-1,239,830,378.86

Finding the Fourth Proportional to 1,350,980,607.90, 1,863,392,139.26 and 1,239,830,378.86

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Solution

The fourth proportional to 1,350,980,607.90, 1,863,392,139.26 and 1,239,830,378.86 is: 1,710,083,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350,980,607.90 : 1,863,392,139.26 = 1,239,830,378.86 : x
  2. Step 2: Convert to fraction form
    1,350,980,607.90/1,863,392,139.26 = 1,239,830,378.86/x
  3. Step 3: Cross multiply
    1,350,980,607.90x = 1,863,392,139.26 × 1,239,830,378.86
  4. Step 4: Simplify right side
    1,350,980,607.90x = 2,310,290,181,983,471,616
  5. Step 5: Solve for x
    x = 2,310,290,181,983,471,616/1,350,980,607.90
  6. Step 6: Final answer
    x = 1,710,083,896.45

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Double scale
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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.