Home / 666,918,968.04-920,766,513.24-429,177,211.02

Finding the Fourth Proportional to 666,918,968.04, 920,766,513.24 and 429,177,211.02

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Solution

The fourth proportional to 666,918,968.04, 920,766,513.24 and 429,177,211.02 is: 592,533,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,918,968.04 : 920,766,513.24 = 429,177,211.02 : x
  2. Step 2: Convert to fraction form
    666,918,968.04/920,766,513.24 = 429,177,211.02/x
  3. Step 3: Cross multiply
    666,918,968.04x = 920,766,513.24 × 429,177,211.02
  4. Step 4: Simplify right side
    666,918,968.04x = 395,172,004,152,953,088
  5. Step 5: Solve for x
    x = 395,172,004,152,953,088/666,918,968.04
  6. Step 6: Final answer
    x = 592,533,760.61

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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.