Home / 1,119,852,034.65-1,679,778,051.98-420,342,818.40

Finding the Fourth Proportional to 1,119,852,034.65, 1,679,778,051.98 and 420,342,818.40

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Solution

The fourth proportional to 1,119,852,034.65, 1,679,778,051.98 and 420,342,818.40 is: 630,514,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,852,034.65 : 1,679,778,051.98 = 420,342,818.40 : x
  2. Step 2: Convert to fraction form
    1,119,852,034.65/1,679,778,051.98 = 420,342,818.40/x
  3. Step 3: Cross multiply
    1,119,852,034.65x = 1,679,778,051.98 × 420,342,818.40
  4. Step 4: Simplify right side
    1,119,852,034.65x = 706,082,640,653,633,152
  5. Step 5: Solve for x
    x = 706,082,640,653,633,152/1,119,852,034.65
  6. Step 6: Final answer
    x = 630,514,227.60

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Similar ratio
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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.