Home / 961,849,702.89-1,327,355,162.78-521,816,554.89

Finding the Fourth Proportional to 961,849,702.89, 1,327,355,162.78 and 521,816,554.89

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Solution

The fourth proportional to 961,849,702.89, 1,327,355,162.78 and 521,816,554.89 is: 720,108,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,849,702.89 : 1,327,355,162.78 = 521,816,554.89 : x
  2. Step 2: Convert to fraction form
    961,849,702.89/1,327,355,162.78 = 521,816,554.89/x
  3. Step 3: Cross multiply
    961,849,702.89x = 1,327,355,162.78 × 521,816,554.89
  4. Step 4: Simplify right side
    961,849,702.89x = 692,635,898,154,705,664
  5. Step 5: Solve for x
    x = 692,635,898,154,705,664/961,849,702.89
  6. Step 6: Final answer
    x = 720,108,241.52

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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.