Home / 920,430,321.60-1,270,185,458.85-502,742,496.18

Finding the Fourth Proportional to 920,430,321.60, 1,270,185,458.85 and 502,742,496.18

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Solution

The fourth proportional to 920,430,321.60, 1,270,185,458.85 and 502,742,496.18 is: 693,780,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,430,321.60 : 1,270,185,458.85 = 502,742,496.18 : x
  2. Step 2: Convert to fraction form
    920,430,321.60/1,270,185,458.85 = 502,742,496.18/x
  3. Step 3: Cross multiply
    920,430,321.60x = 1,270,185,458.85 × 502,742,496.18
  4. Step 4: Simplify right side
    920,430,321.60x = 638,576,208,193,787,648
  5. Step 5: Solve for x
    x = 638,576,208,193,787,648/920,430,321.60
  6. Step 6: Final answer
    x = 693,780,064.83

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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.