Home / 1,117,638,502.72-1,542,374,033.40-615,879,607.87

Finding the Fourth Proportional to 1,117,638,502.72, 1,542,374,033.40 and 615,879,607.87

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Solution

The fourth proportional to 1,117,638,502.72, 1,542,374,033.40 and 615,879,607.87 is: 849,931,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,638,502.72 : 1,542,374,033.40 = 615,879,607.87 : x
  2. Step 2: Convert to fraction form
    1,117,638,502.72/1,542,374,033.40 = 615,879,607.87/x
  3. Step 3: Cross multiply
    1,117,638,502.72x = 1,542,374,033.40 × 615,879,607.87
  4. Step 4: Simplify right side
    1,117,638,502.72x = 949,916,714,876,182,912
  5. Step 5: Solve for x
    x = 949,916,714,876,182,912/1,117,638,502.72
  6. Step 6: Final answer
    x = 849,931,988.36

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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.