Home / 878,048,894.09-1,211,595,767.96-501,729,875.28

Finding the Fourth Proportional to 878,048,894.09, 1,211,595,767.96 and 501,729,875.28

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Solution

The fourth proportional to 878,048,894.09, 1,211,595,767.96 and 501,729,875.28 is: 692,323,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,048,894.09 : 1,211,595,767.96 = 501,729,875.28 : x
  2. Step 2: Convert to fraction form
    878,048,894.09/1,211,595,767.96 = 501,729,875.28/x
  3. Step 3: Cross multiply
    878,048,894.09x = 1,211,595,767.96 × 501,729,875.28
  4. Step 4: Simplify right side
    878,048,894.09x = 607,893,793,545,837,952
  5. Step 5: Solve for x
    x = 607,893,793,545,837,952/878,048,894.09
  6. Step 6: Final answer
    x = 692,323,397.52

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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.