Home / 709,648,138.40-1,064,627,036.40-403,087,114.40

Finding the Fourth Proportional to 709,648,138.40, 1,064,627,036.40 and 403,087,114.40

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Solution

The fourth proportional to 709,648,138.40, 1,064,627,036.40 and 403,087,114.40 is: 604,718,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,648,138.40 : 1,064,627,036.40 = 403,087,114.40 : x
  2. Step 2: Convert to fraction form
    709,648,138.40/1,064,627,036.40 = 403,087,114.40/x
  3. Step 3: Cross multiply
    709,648,138.40x = 1,064,627,036.40 × 403,087,114.40
  4. Step 4: Simplify right side
    709,648,138.40x = 429,137,440,014,699,712
  5. Step 5: Solve for x
    x = 429,137,440,014,699,712/709,648,138.40
  6. Step 6: Final answer
    x = 604,718,615.88

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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.