Home / 515,619,457.41-711,572,038.58-289,598,271.33

Finding the Fourth Proportional to 515,619,457.41, 711,572,038.58 and 289,598,271.33

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Solution

The fourth proportional to 515,619,457.41, 711,572,038.58 and 289,598,271.33 is: 399,655,267.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,619,457.41 : 711,572,038.58 = 289,598,271.33 : x
  2. Step 2: Convert to fraction form
    515,619,457.41/711,572,038.58 = 289,598,271.33/x
  3. Step 3: Cross multiply
    515,619,457.41x = 711,572,038.58 × 289,598,271.33
  4. Step 4: Simplify right side
    515,619,457.41x = 206,070,032,298,084,064
  5. Step 5: Solve for x
    x = 206,070,032,298,084,064/515,619,457.41
  6. Step 6: Final answer
    x = 399,655,267.73

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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.