Home / 1,243,272,679.04-1,715,671,233.44-686,343,739.52

Finding the Fourth Proportional to 1,243,272,679.04, 1,715,671,233.44 and 686,343,739.52

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Solution

The fourth proportional to 1,243,272,679.04, 1,715,671,233.44 and 686,343,739.52 is: 947,129,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,272,679.04 : 1,715,671,233.44 = 686,343,739.52 : x
  2. Step 2: Convert to fraction form
    1,243,272,679.04/1,715,671,233.44 = 686,343,739.52/x
  3. Step 3: Cross multiply
    1,243,272,679.04x = 1,715,671,233.44 × 686,343,739.52
  4. Step 4: Simplify right side
    1,243,272,679.04x = 1,177,540,210,146,100,480
  5. Step 5: Solve for x
    x = 1,177,540,210,146,100,480/1,243,272,679.04
  6. Step 6: Final answer
    x = 947,129,483.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.