Home / 255,292,899,531.74-382,939,349,323.96-85,312,488,563.98

Finding the Fourth Proportional to 255,292,899,531.74, 382,939,349,323.96 and 85,312,488,563.98

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Solution

The fourth proportional to 255,292,899,531.74, 382,939,349,323.96 and 85,312,488,563.98 is: 127,968,732,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,292,899,531.74 : 382,939,349,323.96 = 85,312,488,563.98 : x
  2. Step 2: Convert to fraction form
    255,292,899,531.74/382,939,349,323.96 = 85,312,488,563.98/x
  3. Step 3: Cross multiply
    255,292,899,531.74x = 382,939,349,323.96 × 85,312,488,563.98
  4. Step 4: Simplify right side
    255,292,899,531.74x = 32,669,508,859,898,280,017,920
  5. Step 5: Solve for x
    x = 32,669,508,859,898,280,017,920/255,292,899,531.74
  6. Step 6: Final answer
    x = 127,968,732,854.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.