Home / 545,424,647.39-752,688,312.09-307,272,689.36

Finding the Fourth Proportional to 545,424,647.39, 752,688,312.09 and 307,272,689.36

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Solution

The fourth proportional to 545,424,647.39, 752,688,312.09 and 307,272,689.36 is: 424,037,606.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,424,647.39 : 752,688,312.09 = 307,272,689.36 : x
  2. Step 2: Convert to fraction form
    545,424,647.39/752,688,312.09 = 307,272,689.36/x
  3. Step 3: Cross multiply
    545,424,647.39x = 752,688,312.09 × 307,272,689.36
  4. Step 4: Simplify right side
    545,424,647.39x = 231,280,561,903,640,128
  5. Step 5: Solve for x
    x = 231,280,561,903,640,128/545,424,647.39
  6. Step 6: Final answer
    x = 424,037,606.31

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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.