Home / 666,927,108.48-920,364,892.88-369,574,316.36

Finding the Fourth Proportional to 666,927,108.48, 920,364,892.88 and 369,574,316.36

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Solution

The fourth proportional to 666,927,108.48, 920,364,892.88 and 369,574,316.36 is: 510,015,595.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,927,108.48 : 920,364,892.88 = 369,574,316.36 : x
  2. Step 2: Convert to fraction form
    666,927,108.48/920,364,892.88 = 369,574,316.36/x
  3. Step 3: Cross multiply
    666,927,108.48x = 920,364,892.88 × 369,574,316.36
  4. Step 4: Simplify right side
    666,927,108.48x = 340,143,226,090,123,328
  5. Step 5: Solve for x
    x = 340,143,226,090,123,328/666,927,108.48
  6. Step 6: Final answer
    x = 510,015,595.06

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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.