Home / 651,828,608.10-977,742,912.15-392,910,552.90

Finding the Fourth Proportional to 651,828,608.10, 977,742,912.15 and 392,910,552.90

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Solution

The fourth proportional to 651,828,608.10, 977,742,912.15 and 392,910,552.90 is: 589,365,829.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,828,608.10 : 977,742,912.15 = 392,910,552.90 : x
  2. Step 2: Convert to fraction form
    651,828,608.10/977,742,912.15 = 392,910,552.90/x
  3. Step 3: Cross multiply
    651,828,608.10x = 977,742,912.15 × 392,910,552.90
  4. Step 4: Simplify right side
    651,828,608.10x = 384,165,508,206,912,576
  5. Step 5: Solve for x
    x = 384,165,508,206,912,576/651,828,608.10
  6. Step 6: Final answer
    x = 589,365,829.35

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Double scale
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1.5x scale

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.