Home / 1,209,665,291.79-1,814,689,256.46-433,293,763.71

Finding the Fourth Proportional to 1,209,665,291.79, 1,814,689,256.46 and 433,293,763.71

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Solution

The fourth proportional to 1,209,665,291.79, 1,814,689,256.46 and 433,293,763.71 is: 650,009,174.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,665,291.79 : 1,814,689,256.46 = 433,293,763.71 : x
  2. Step 2: Convert to fraction form
    1,209,665,291.79/1,814,689,256.46 = 433,293,763.71/x
  3. Step 3: Cross multiply
    1,209,665,291.79x = 1,814,689,256.46 × 433,293,763.71
  4. Step 4: Simplify right side
    1,209,665,291.79x = 786,293,537,893,488,256
  5. Step 5: Solve for x
    x = 786,293,537,893,488,256/1,209,665,291.79
  6. Step 6: Final answer
    x = 650,009,174.63

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Double scale
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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.