Home / 666,794,657.13-920,176,626.86-373,439,225.13

Finding the Fourth Proportional to 666,794,657.13, 920,176,626.86 and 373,439,225.13

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Solution

The fourth proportional to 666,794,657.13, 920,176,626.86 and 373,439,225.13 is: 515,346,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,794,657.13 : 920,176,626.86 = 373,439,225.13 : x
  2. Step 2: Convert to fraction form
    666,794,657.13/920,176,626.86 = 373,439,225.13/x
  3. Step 3: Cross multiply
    666,794,657.13x = 920,176,626.86 × 373,439,225.13
  4. Step 4: Simplify right side
    666,794,657.13x = 343,630,046,517,335,552
  5. Step 5: Solve for x
    x = 343,630,046,517,335,552/666,794,657.13
  6. Step 6: Final answer
    x = 515,346,130.69

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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.