Home / 910,358,386.83-1,256,294,561.70-492,670,672.13

Finding the Fourth Proportional to 910,358,386.83, 1,256,294,561.70 and 492,670,672.13

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Solution

The fourth proportional to 910,358,386.83, 1,256,294,561.70 and 492,670,672.13 is: 679,885,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,358,386.83 : 1,256,294,561.70 = 492,670,672.13 : x
  2. Step 2: Convert to fraction form
    910,358,386.83/1,256,294,561.70 = 492,670,672.13/x
  3. Step 3: Cross multiply
    910,358,386.83x = 1,256,294,561.70 × 492,670,672.13
  4. Step 4: Simplify right side
    910,358,386.83x = 618,939,486,099,721,344
  5. Step 5: Solve for x
    x = 618,939,486,099,721,344/910,358,386.83
  6. Step 6: Final answer
    x = 679,885,520.97

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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.