Home / 1,931,509,928.70-2,897,477,469.45-621,188,999.10

Finding the Fourth Proportional to 1,931,509,928.70, 2,897,477,469.45 and 621,188,999.10

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Solution

The fourth proportional to 1,931,509,928.70, 2,897,477,469.45 and 621,188,999.10 is: 931,851,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,509,928.70 : 2,897,477,469.45 = 621,188,999.10 : x
  2. Step 2: Convert to fraction form
    1,931,509,928.70/2,897,477,469.45 = 621,188,999.10/x
  3. Step 3: Cross multiply
    1,931,509,928.70x = 2,897,477,469.45 × 621,188,999.10
  4. Step 4: Simplify right side
    1,931,509,928.70x = 1,799,881,129,162,446,336
  5. Step 5: Solve for x
    x = 1,799,881,129,162,446,336/1,931,509,928.70
  6. Step 6: Final answer
    x = 931,851,864.92

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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.