Home / 553,588,777.60-763,939,064.64-306,063,767.68

Finding the Fourth Proportional to 553,588,777.60, 763,939,064.64 and 306,063,767.68

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Solution

The fourth proportional to 553,588,777.60, 763,939,064.64 and 306,063,767.68 is: 422,360,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,588,777.60 : 763,939,064.64 = 306,063,767.68 : x
  2. Step 2: Convert to fraction form
    553,588,777.60/763,939,064.64 = 306,063,767.68/x
  3. Step 3: Cross multiply
    553,588,777.60x = 763,939,064.64 × 306,063,767.68
  4. Step 4: Simplify right side
    553,588,777.60x = 233,814,068,401,653,472
  5. Step 5: Solve for x
    x = 233,814,068,401,653,472/553,588,777.60
  6. Step 6: Final answer
    x = 422,360,564.13

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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.