Home / 662,064,386.40-991,395,968.40-524,881,749.60

Finding the Fourth Proportional to 662,064,386.40, 991,395,968.40 and 524,881,749.60

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Solution

The fourth proportional to 662,064,386.40, 991,395,968.40 and 524,881,749.60 is: 785,974,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,064,386.40 : 991,395,968.40 = 524,881,749.60 : x
  2. Step 2: Convert to fraction form
    662,064,386.40/991,395,968.40 = 524,881,749.60/x
  3. Step 3: Cross multiply
    662,064,386.40x = 991,395,968.40 × 524,881,749.60
  4. Step 4: Simplify right side
    662,064,386.40x = 520,365,650,440,178,304
  5. Step 5: Solve for x
    x = 520,365,650,440,178,304/662,064,386.40
  6. Step 6: Final answer
    x = 785,974,387.28

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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.