Home / 800,442,023.60-1,200,663,035.40-525,828,744.20

Finding the Fourth Proportional to 800,442,023.60, 1,200,663,035.40 and 525,828,744.20

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Solution

The fourth proportional to 800,442,023.60, 1,200,663,035.40 and 525,828,744.20 is: 788,743,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,442,023.60 : 1,200,663,035.40 = 525,828,744.20 : x
  2. Step 2: Convert to fraction form
    800,442,023.60/1,200,663,035.40 = 525,828,744.20/x
  3. Step 3: Cross multiply
    800,442,023.60x = 1,200,663,035.40 × 525,828,744.20
  4. Step 4: Simplify right side
    800,442,023.60x = 631,343,136,111,742,208
  5. Step 5: Solve for x
    x = 631,343,136,111,742,208/800,442,023.60
  6. Step 6: Final answer
    x = 788,743,116.30

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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.