Home / 786,974,536.83-1,085,632,602.03-469,210,675.80

Finding the Fourth Proportional to 786,974,536.83, 1,085,632,602.03 and 469,210,675.80

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Solution

The fourth proportional to 786,974,536.83, 1,085,632,602.03 and 469,210,675.80 is: 647,276,859.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,974,536.83 : 1,085,632,602.03 = 469,210,675.80 : x
  2. Step 2: Convert to fraction form
    786,974,536.83/1,085,632,602.03 = 469,210,675.80/x
  3. Step 3: Cross multiply
    786,974,536.83x = 1,085,632,602.03 × 469,210,675.80
  4. Step 4: Simplify right side
    786,974,536.83x = 509,390,406,869,008,768
  5. Step 5: Solve for x
    x = 509,390,406,869,008,768/786,974,536.83
  6. Step 6: Final answer
    x = 647,276,859.71

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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.