Home / 714,572,357,889.60-986,110,058,813.76-389,411,740,939.68

Finding the Fourth Proportional to 714,572,357,889.60, 986,110,058,813.76 and 389,411,740,939.68

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Solution

The fourth proportional to 714,572,357,889.60, 986,110,058,813.76 and 389,411,740,939.68 is: 537,388,314,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,572,357,889.60 : 986,110,058,813.76 = 389,411,740,939.68 : x
  2. Step 2: Convert to fraction form
    714,572,357,889.60/986,110,058,813.76 = 389,411,740,939.68/x
  3. Step 3: Cross multiply
    714,572,357,889.60x = 986,110,058,813.76 × 389,411,740,939.68
  4. Step 4: Simplify right side
    714,572,357,889.60x = 384,002,834,760,796,523,724,800
  5. Step 5: Solve for x
    x = 384,002,834,760,796,523,724,800/714,572,357,889.60
  6. Step 6: Final answer
    x = 537,388,314,172.83

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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.