Home / 398,997,439.94-550,708,267.47-234,038,153.54

Finding the Fourth Proportional to 398,997,439.94, 550,708,267.47 and 234,038,153.54

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Solution

The fourth proportional to 398,997,439.94, 550,708,267.47 and 234,038,153.54 is: 323,026,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,997,439.94 : 550,708,267.47 = 234,038,153.54 : x
  2. Step 2: Convert to fraction form
    398,997,439.94/550,708,267.47 = 234,038,153.54/x
  3. Step 3: Cross multiply
    398,997,439.94x = 550,708,267.47 × 234,038,153.54
  4. Step 4: Simplify right side
    398,997,439.94x = 128,886,746,058,390,352
  5. Step 5: Solve for x
    x = 128,886,746,058,390,352/398,997,439.94
  6. Step 6: Final answer
    x = 323,026,498.81

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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.