Home / 1,382,630,541.05-1,908,178,012.79-847,137,584.34

Finding the Fourth Proportional to 1,382,630,541.05, 1,908,178,012.79 and 847,137,584.34

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Solution

The fourth proportional to 1,382,630,541.05, 1,908,178,012.79 and 847,137,584.34 is: 1,169,140,463.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,630,541.05 : 1,908,178,012.79 = 847,137,584.34 : x
  2. Step 2: Convert to fraction form
    1,382,630,541.05/1,908,178,012.79 = 847,137,584.34/x
  3. Step 3: Cross multiply
    1,382,630,541.05x = 1,908,178,012.79 × 847,137,584.34
  4. Step 4: Simplify right side
    1,382,630,541.05x = 1,616,489,312,241,386,752
  5. Step 5: Solve for x
    x = 1,616,489,312,241,386,752/1,382,630,541.05
  6. Step 6: Final answer
    x = 1,169,140,463.96

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Double scale
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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.