Home / 670,901,602.96-1,005,840,121.02-210,573,444.88

Finding the Fourth Proportional to 670,901,602.96, 1,005,840,121.02 and 210,573,444.88

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Solution

The fourth proportional to 670,901,602.96, 1,005,840,121.02 and 210,573,444.88 is: 315,699,378.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,901,602.96 : 1,005,840,121.02 = 210,573,444.88 : x
  2. Step 2: Convert to fraction form
    670,901,602.96/1,005,840,121.02 = 210,573,444.88/x
  3. Step 3: Cross multiply
    670,901,602.96x = 1,005,840,121.02 × 210,573,444.88
  4. Step 4: Simplify right side
    670,901,602.96x = 211,803,219,281,697,504
  5. Step 5: Solve for x
    x = 211,803,219,281,697,504/670,901,602.96
  6. Step 6: Final answer
    x = 315,699,378.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.