Home / 438,632,890.40-657,944,260.98-106,641,783.92

Finding the Fourth Proportional to 438,632,890.40, 657,944,260.98 and 106,641,783.92

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Solution

The fourth proportional to 438,632,890.40, 657,944,260.98 and 106,641,783.92 is: 159,961,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,632,890.40 : 657,944,260.98 = 106,641,783.92 : x
  2. Step 2: Convert to fraction form
    438,632,890.40/657,944,260.98 = 106,641,783.92/x
  3. Step 3: Cross multiply
    438,632,890.40x = 657,944,260.98 × 106,641,783.92
  4. Step 4: Simplify right side
    438,632,890.40x = 70,164,349,710,833,248
  5. Step 5: Solve for x
    x = 70,164,349,710,833,248/438,632,890.40
  6. Step 6: Final answer
    x = 159,961,442.12

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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.