Home / 1,088,506,521.98-1,502,095,733.89-642,613,520.38

Finding the Fourth Proportional to 1,088,506,521.98, 1,502,095,733.89 and 642,613,520.38

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Solution

The fourth proportional to 1,088,506,521.98, 1,502,095,733.89 and 642,613,520.38 is: 886,781,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,506,521.98 : 1,502,095,733.89 = 642,613,520.38 : x
  2. Step 2: Convert to fraction form
    1,088,506,521.98/1,502,095,733.89 = 642,613,520.38/x
  3. Step 3: Cross multiply
    1,088,506,521.98x = 1,502,095,733.89 × 642,613,520.38
  4. Step 4: Simplify right side
    1,088,506,521.98x = 965,267,027,502,832,640
  5. Step 5: Solve for x
    x = 965,267,027,502,832,640/1,088,506,521.98
  6. Step 6: Final answer
    x = 886,781,115.24

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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.