Home / 1,307,908,447.86-1,804,900,478.85-713,191,429.62

Finding the Fourth Proportional to 1,307,908,447.86, 1,804,900,478.85 and 713,191,429.62

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Solution

The fourth proportional to 1,307,908,447.86, 1,804,900,478.85 and 713,191,429.62 is: 984,196,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,908,447.86 : 1,804,900,478.85 = 713,191,429.62 : x
  2. Step 2: Convert to fraction form
    1,307,908,447.86/1,804,900,478.85 = 713,191,429.62/x
  3. Step 3: Cross multiply
    1,307,908,447.86x = 1,804,900,478.85 × 713,191,429.62
  4. Step 4: Simplify right side
    1,307,908,447.86x = 1,287,239,552,832,854,016
  5. Step 5: Solve for x
    x = 1,287,239,552,832,854,016/1,307,908,447.86
  6. Step 6: Final answer
    x = 984,196,986.37

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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.