Home / 398,309,176,424.42-549,668,319,548.18-215,406,278,069.27

Finding the Fourth Proportional to 398,309,176,424.42, 549,668,319,548.18 and 215,406,278,069.27

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Solution

The fourth proportional to 398,309,176,424.42, 549,668,319,548.18 and 215,406,278,069.27 is: 297,261,559,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,309,176,424.42 : 549,668,319,548.18 = 215,406,278,069.27 : x
  2. Step 2: Convert to fraction form
    398,309,176,424.42/549,668,319,548.18 = 215,406,278,069.27/x
  3. Step 3: Cross multiply
    398,309,176,424.42x = 549,668,319,548.18 × 215,406,278,069.27
  4. Step 4: Simplify right side
    398,309,176,424.42x = 118,402,006,886,463,609,765,888
  5. Step 5: Solve for x
    x = 118,402,006,886,463,609,765,888/398,309,176,424.42
  6. Step 6: Final answer
    x = 297,261,559,347.81

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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.