Home / 518,938,411.60-778,407,617.40-173,777,323.60

Finding the Fourth Proportional to 518,938,411.60, 778,407,617.40 and 173,777,323.60

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Solution

The fourth proportional to 518,938,411.60, 778,407,617.40 and 173,777,323.60 is: 260,665,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,938,411.60 : 778,407,617.40 = 173,777,323.60 : x
  2. Step 2: Convert to fraction form
    518,938,411.60/778,407,617.40 = 173,777,323.60/x
  3. Step 3: Cross multiply
    518,938,411.60x = 778,407,617.40 × 173,777,323.60
  4. Step 4: Simplify right side
    518,938,411.60x = 135,269,592,421,624,784
  5. Step 5: Solve for x
    x = 135,269,592,421,624,784/518,938,411.60
  6. Step 6: Final answer
    x = 260,665,985.40

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Double scale
Find fourth proportional to 518,938,412.60, 778,407,618.90 and 173,777,324.60
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.