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Finding the Fourth Proportional to 569,256,663.72, 785,574,867.94 and 308,496,279.72

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Solution

The fourth proportional to 569,256,663.72, 785,574,867.94 and 308,496,279.72 is: 425,725,230.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,256,663.72 : 785,574,867.94 = 308,496,279.72 : x
  2. Step 2: Convert to fraction form
    569,256,663.72/785,574,867.94 = 308,496,279.72/x
  3. Step 3: Cross multiply
    569,256,663.72x = 785,574,867.94 × 308,496,279.72
  4. Step 4: Simplify right side
    569,256,663.72x = 242,346,924,201,020,352
  5. Step 5: Solve for x
    x = 242,346,924,201,020,352/569,256,663.72
  6. Step 6: Final answer
    x = 425,725,230.19

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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.