Home / 860,312,155,502.21-1,289,832,046,376.40-520,275,737,651.03

Finding the Fourth Proportional to 860,312,155,502.21, 1,289,832,046,376.40 and 520,275,737,651.03

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Solution

The fourth proportional to 860,312,155,502.21, 1,289,832,046,376.40 and 520,275,737,651.03 is: 780,028,871,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,312,155,502.21 : 1,289,832,046,376.40 = 520,275,737,651.03 : x
  2. Step 2: Convert to fraction form
    860,312,155,502.21/1,289,832,046,376.40 = 520,275,737,651.03/x
  3. Step 3: Cross multiply
    860,312,155,502.21x = 1,289,832,046,376.40 × 520,275,737,651.03
  4. Step 4: Simplify right side
    860,312,155,502.21x = 671,068,319,374,419,020,480,512
  5. Step 5: Solve for x
    x = 671,068,319,374,419,020,480,512/860,312,155,502.21
  6. Step 6: Final answer
    x = 780,028,871,012.15

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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.