Home / 12,539,339,535.08-17,300,392,905.30-7,112,980,823.72

Finding the Fourth Proportional to 12,539,339,535.08, 17,300,392,905.30 and 7,112,980,823.72

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Solution

The fourth proportional to 12,539,339,535.08, 17,300,392,905.30 and 7,112,980,823.72 is: 9,813,703,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539,339,535.08 : 17,300,392,905.30 = 7,112,980,823.72 : x
  2. Step 2: Convert to fraction form
    12,539,339,535.08/17,300,392,905.30 = 7,112,980,823.72/x
  3. Step 3: Cross multiply
    12,539,339,535.08x = 17,300,392,905.30 × 7,112,980,823.72
  4. Step 4: Simplify right side
    12,539,339,535.08x = 123,057,362,978,220,441,600
  5. Step 5: Solve for x
    x = 123,057,362,978,220,441,600/12,539,339,535.08
  6. Step 6: Final answer
    x = 9,813,703,714.93

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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.