Home / 786,715,712.03-1,085,662,159.65-429,483,488.63

Finding the Fourth Proportional to 786,715,712.03, 1,085,662,159.65 and 429,483,488.63

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Solution

The fourth proportional to 786,715,712.03, 1,085,662,159.65 and 429,483,488.63 is: 592,684,199.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,715,712.03 : 1,085,662,159.65 = 429,483,488.63 : x
  2. Step 2: Convert to fraction form
    786,715,712.03/1,085,662,159.65 = 429,483,488.63/x
  3. Step 3: Cross multiply
    786,715,712.03x = 1,085,662,159.65 × 429,483,488.63
  4. Step 4: Simplify right side
    786,715,712.03x = 466,273,971,794,633,728
  5. Step 5: Solve for x
    x = 466,273,971,794,633,728/786,715,712.03
  6. Step 6: Final answer
    x = 592,684,199.22

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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.