Home / 1,290,819,533.63-1,932,221,275.76-699,140,221.16

Finding the Fourth Proportional to 1,290,819,533.63, 1,932,221,275.76 and 699,140,221.16

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Solution

The fourth proportional to 1,290,819,533.63, 1,932,221,275.76 and 699,140,221.16 is: 1,046,539,485.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,819,533.63 : 1,932,221,275.76 = 699,140,221.16 : x
  2. Step 2: Convert to fraction form
    1,290,819,533.63/1,932,221,275.76 = 699,140,221.16/x
  3. Step 3: Cross multiply
    1,290,819,533.63x = 1,932,221,275.76 × 699,140,221.16
  4. Step 4: Simplify right side
    1,290,819,533.63x = 1,350,893,610,071,482,112
  5. Step 5: Solve for x
    x = 1,350,893,610,071,482,112/1,290,819,533.63
  6. Step 6: Final answer
    x = 1,046,539,485.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.