Home / 618,742,401.63-856,112,929.82-539,522,655.36

Finding the Fourth Proportional to 618,742,401.63, 856,112,929.82 and 539,522,655.36

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Solution

The fourth proportional to 618,742,401.63, 856,112,929.82 and 539,522,655.36 is: 746,501,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,742,401.63 : 856,112,929.82 = 539,522,655.36 : x
  2. Step 2: Convert to fraction form
    618,742,401.63/856,112,929.82 = 539,522,655.36/x
  3. Step 3: Cross multiply
    618,742,401.63x = 856,112,929.82 × 539,522,655.36
  4. Step 4: Simplify right side
    618,742,401.63x = 461,892,321,184,515,776
  5. Step 5: Solve for x
    x = 461,892,321,184,515,776/618,742,401.63
  6. Step 6: Final answer
    x = 746,501,807.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.