Home / 1,114,166,939.40-1,537,564,309.02-612,430,502.40

Finding the Fourth Proportional to 1,114,166,939.40, 1,537,564,309.02 and 612,430,502.40

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Solution

The fourth proportional to 1,114,166,939.40, 1,537,564,309.02 and 612,430,502.40 is: 845,161,751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,166,939.40 : 1,537,564,309.02 = 612,430,502.40 : x
  2. Step 2: Convert to fraction form
    1,114,166,939.40/1,537,564,309.02 = 612,430,502.40/x
  3. Step 3: Cross multiply
    1,114,166,939.40x = 1,537,564,309.02 × 612,430,502.40
  4. Step 4: Simplify right side
    1,114,166,939.40x = 941,651,282,245,427,456
  5. Step 5: Solve for x
    x = 941,651,282,245,427,456/1,114,166,939.40
  6. Step 6: Final answer
    x = 845,161,751.75

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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.