Home / 665,612,364.90-918,511,453.80-364,191,152.70

Finding the Fourth Proportional to 665,612,364.90, 918,511,453.80 and 364,191,152.70

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Solution

The fourth proportional to 665,612,364.90, 918,511,453.80 and 364,191,152.70 is: 502,565,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,612,364.90 : 918,511,453.80 = 364,191,152.70 : x
  2. Step 2: Convert to fraction form
    665,612,364.90/918,511,453.80 = 364,191,152.70/x
  3. Step 3: Cross multiply
    665,612,364.90x = 918,511,453.80 × 364,191,152.70
  4. Step 4: Simplify right side
    665,612,364.90x = 334,513,745,127,574,784
  5. Step 5: Solve for x
    x = 334,513,745,127,574,784/665,612,364.90
  6. Step 6: Final answer
    x = 502,565,401.08

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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.