Home / 1,152,386,147.76-1,590,292,961.64-630,865,379.76

Finding the Fourth Proportional to 1,152,386,147.76, 1,590,292,961.64 and 630,865,379.76

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Solution

The fourth proportional to 1,152,386,147.76, 1,590,292,961.64 and 630,865,379.76 is: 870,594,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,386,147.76 : 1,590,292,961.64 = 630,865,379.76 : x
  2. Step 2: Convert to fraction form
    1,152,386,147.76/1,590,292,961.64 = 630,865,379.76/x
  3. Step 3: Cross multiply
    1,152,386,147.76x = 1,590,292,961.64 × 630,865,379.76
  4. Step 4: Simplify right side
    1,152,386,147.76x = 1,003,260,773,174,673,792
  5. Step 5: Solve for x
    x = 1,003,260,773,174,673,792/1,152,386,147.76
  6. Step 6: Final answer
    x = 870,594,266.62

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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.