Home / 338,281,638.60-507,422,457.90-299,314,547.40

Finding the Fourth Proportional to 338,281,638.60, 507,422,457.90 and 299,314,547.40

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Solution

The fourth proportional to 338,281,638.60, 507,422,457.90 and 299,314,547.40 is: 448,971,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,281,638.60 : 507,422,457.90 = 299,314,547.40 : x
  2. Step 2: Convert to fraction form
    338,281,638.60/507,422,457.90 = 299,314,547.40/x
  3. Step 3: Cross multiply
    338,281,638.60x = 507,422,457.90 × 299,314,547.40
  4. Step 4: Simplify right side
    338,281,638.60x = 151,878,923,326,934,048
  5. Step 5: Solve for x
    x = 151,878,923,326,934,048/338,281,638.60
  6. Step 6: Final answer
    x = 448,971,821.10

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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.