Home / 620,912,088-932,014,130.40-457,334,550.72

Finding the Fourth Proportional to 620,912,088, 932,014,130.40 and 457,334,550.72

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Solution

The fourth proportional to 620,912,088, 932,014,130.40 and 457,334,550.72 is: 686,477,638.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,912,088 : 932,014,130.40 = 457,334,550.72 : x
  2. Step 2: Convert to fraction form
    620,912,088/932,014,130.40 = 457,334,550.72/x
  3. Step 3: Cross multiply
    620,912,088x = 932,014,130.40 × 457,334,550.72
  4. Step 4: Simplify right side
    620,912,088x = 426,242,263,591,175,488
  5. Step 5: Solve for x
    x = 426,242,263,591,175,488/620,912,088
  6. Step 6: Final answer
    x = 686,477,638.02

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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.