Home / 710,705,851.08-981,020,639.70-488,423,355

Finding the Fourth Proportional to 710,705,851.08, 981,020,639.70 and 488,423,355

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Solution

The fourth proportional to 710,705,851.08, 981,020,639.70 and 488,423,355 is: 674,193,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,705,851.08 : 981,020,639.70 = 488,423,355 : x
  2. Step 2: Convert to fraction form
    710,705,851.08/981,020,639.70 = 488,423,355/x
  3. Step 3: Cross multiply
    710,705,851.08x = 981,020,639.70 × 488,423,355
  4. Step 4: Simplify right side
    710,705,851.08x = 479,153,392,166,520,192
  5. Step 5: Solve for x
    x = 479,153,392,166,520,192/710,705,851.08
  6. Step 6: Final answer
    x = 674,193,678.63

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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.