Home / 651,264,784.40-976,897,176.60-646,729,821.20

Finding the Fourth Proportional to 651,264,784.40, 976,897,176.60 and 646,729,821.20

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Solution

The fourth proportional to 651,264,784.40, 976,897,176.60 and 646,729,821.20 is: 970,094,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,264,784.40 : 976,897,176.60 = 646,729,821.20 : x
  2. Step 2: Convert to fraction form
    651,264,784.40/976,897,176.60 = 646,729,821.20/x
  3. Step 3: Cross multiply
    651,264,784.40x = 976,897,176.60 × 646,729,821.20
  4. Step 4: Simplify right side
    651,264,784.40x = 631,788,536,353,302,912
  5. Step 5: Solve for x
    x = 631,788,536,353,302,912/651,264,784.40
  6. Step 6: Final answer
    x = 970,094,731.80

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Double scale
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Similar ratio
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1.5x scale

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.