Home / 1,231,390,191.68-1,699,297,461.12-666,870,488

Finding the Fourth Proportional to 1,231,390,191.68, 1,699,297,461.12 and 666,870,488

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Solution

The fourth proportional to 1,231,390,191.68, 1,699,297,461.12 and 666,870,488 is: 920,269,898.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,390,191.68 : 1,699,297,461.12 = 666,870,488 : x
  2. Step 2: Convert to fraction form
    1,231,390,191.68/1,699,297,461.12 = 666,870,488/x
  3. Step 3: Cross multiply
    1,231,390,191.68x = 1,699,297,461.12 × 666,870,488
  4. Step 4: Simplify right side
    1,231,390,191.68x = 1,133,211,327,154,255,360
  5. Step 5: Solve for x
    x = 1,133,211,327,154,255,360/1,231,390,191.68
  6. Step 6: Final answer
    x = 920,269,898.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.