Home / 2,908,931,457.96-4,014,337,671.68-1,638,787,681.80

Finding the Fourth Proportional to 2,908,931,457.96, 4,014,337,671.68 and 1,638,787,681.80

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Solution

The fourth proportional to 2,908,931,457.96, 4,014,337,671.68 and 1,638,787,681.80 is: 2,261,533,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908,931,457.96 : 4,014,337,671.68 = 1,638,787,681.80 : x
  2. Step 2: Convert to fraction form
    2,908,931,457.96/4,014,337,671.68 = 1,638,787,681.80/x
  3. Step 3: Cross multiply
    2,908,931,457.96x = 4,014,337,671.68 × 1,638,787,681.80
  4. Step 4: Simplify right side
    2,908,931,457.96x = 6,578,647,126,926,683,136
  5. Step 5: Solve for x
    x = 6,578,647,126,926,683,136/2,908,931,457.96
  6. Step 6: Final answer
    x = 2,261,533,907.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.