Home / 919,853,976.86-1,269,392,030.49-502,166,262.14

Finding the Fourth Proportional to 919,853,976.86, 1,269,392,030.49 and 502,166,262.14

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Solution

The fourth proportional to 919,853,976.86, 1,269,392,030.49 and 502,166,262.14 is: 692,985,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,853,976.86 : 1,269,392,030.49 = 502,166,262.14 : x
  2. Step 2: Convert to fraction form
    919,853,976.86/1,269,392,030.49 = 502,166,262.14/x
  3. Step 3: Cross multiply
    919,853,976.86x = 1,269,392,030.49 × 502,166,262.14
  4. Step 4: Simplify right side
    919,853,976.86x = 637,445,851,141,468,160
  5. Step 5: Solve for x
    x = 637,445,851,141,468,160/919,853,976.86
  6. Step 6: Final answer
    x = 692,985,916.44

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1.5x scale

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.