Home / 919,854,006.77-1,269,392,071.66-502,166,291.92

Finding the Fourth Proportional to 919,854,006.77, 1,269,392,071.66 and 502,166,291.92

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Solution

The fourth proportional to 919,854,006.77, 1,269,392,071.66 and 502,166,291.92 is: 692,985,957.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,854,006.77 : 1,269,392,071.66 = 502,166,291.92 : x
  2. Step 2: Convert to fraction form
    919,854,006.77/1,269,392,071.66 = 502,166,291.92/x
  3. Step 3: Cross multiply
    919,854,006.77x = 1,269,392,071.66 × 502,166,291.92
  4. Step 4: Simplify right side
    919,854,006.77x = 637,445,909,613,720,320
  5. Step 5: Solve for x
    x = 637,445,909,613,720,320/919,854,006.77
  6. Step 6: Final answer
    x = 692,985,957.47

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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.