Home / 877,521,397.50-1,210,979,703.51-486,380,821.50

Finding the Fourth Proportional to 877,521,397.50, 1,210,979,703.51 and 486,380,821.50

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Solution

The fourth proportional to 877,521,397.50, 1,210,979,703.51 and 486,380,821.50 is: 671,205,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,521,397.50 : 1,210,979,703.51 = 486,380,821.50 : x
  2. Step 2: Convert to fraction form
    877,521,397.50/1,210,979,703.51 = 486,380,821.50/x
  3. Step 3: Cross multiply
    877,521,397.50x = 1,210,979,703.51 × 486,380,821.50
  4. Step 4: Simplify right side
    877,521,397.50x = 588,997,303,013,020,288
  5. Step 5: Solve for x
    x = 588,997,303,013,020,288/877,521,397.50
  6. Step 6: Final answer
    x = 671,205,630.64

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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.