Home / 898,307,476.65-1,237,898,445.12-686,853,893.39

Finding the Fourth Proportional to 898,307,476.65, 1,237,898,445.12 and 686,853,893.39

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Solution

The fourth proportional to 898,307,476.65, 1,237,898,445.12 and 686,853,893.39 is: 946,508,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,307,476.65 : 1,237,898,445.12 = 686,853,893.39 : x
  2. Step 2: Convert to fraction form
    898,307,476.65/1,237,898,445.12 = 686,853,893.39/x
  3. Step 3: Cross multiply
    898,307,476.65x = 1,237,898,445.12 × 686,853,893.39
  4. Step 4: Simplify right side
    898,307,476.65x = 850,255,366,645,909,632
  5. Step 5: Solve for x
    x = 850,255,366,645,909,632/898,307,476.65
  6. Step 6: Final answer
    x = 946,508,170.92

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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.