Home / 749,205,639.54-1,124,195,954.70-543,638,864.32

Finding the Fourth Proportional to 749,205,639.54, 1,124,195,954.70 and 543,638,864.32

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Solution

The fourth proportional to 749,205,639.54, 1,124,195,954.70 and 543,638,864.32 is: 815,739,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,205,639.54 : 1,124,195,954.70 = 543,638,864.32 : x
  2. Step 2: Convert to fraction form
    749,205,639.54/1,124,195,954.70 = 543,638,864.32/x
  3. Step 3: Cross multiply
    749,205,639.54x = 1,124,195,954.70 × 543,638,864.32
  4. Step 4: Simplify right side
    749,205,639.54x = 611,156,612,085,501,440
  5. Step 5: Solve for x
    x = 611,156,612,085,501,440/749,205,639.54
  6. Step 6: Final answer
    x = 815,739,471.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.