Home / 1,280,829,675.46-1,921,287,041.23-440,464,174.53

Finding the Fourth Proportional to 1,280,829,675.46, 1,921,287,041.23 and 440,464,174.53

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Solution

The fourth proportional to 1,280,829,675.46, 1,921,287,041.23 and 440,464,174.53 is: 660,710,886.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,829,675.46 : 1,921,287,041.23 = 440,464,174.53 : x
  2. Step 2: Convert to fraction form
    1,280,829,675.46/1,921,287,041.23 = 440,464,174.53/x
  3. Step 3: Cross multiply
    1,280,829,675.46x = 1,921,287,041.23 × 440,464,174.53
  4. Step 4: Simplify right side
    1,280,829,675.46x = 846,258,110,649,456,768
  5. Step 5: Solve for x
    x = 846,258,110,649,456,768/1,280,829,675.46
  6. Step 6: Final answer
    x = 660,710,886.75

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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.