Home / 990,294,389.28-1,366,637,012.55-544,249,643.67

Finding the Fourth Proportional to 990,294,389.28, 1,366,637,012.55 and 544,249,643.67

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Solution

The fourth proportional to 990,294,389.28, 1,366,637,012.55 and 544,249,643.67 is: 751,081,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,294,389.28 : 1,366,637,012.55 = 544,249,643.67 : x
  2. Step 2: Convert to fraction form
    990,294,389.28/1,366,637,012.55 = 544,249,643.67/x
  3. Step 3: Cross multiply
    990,294,389.28x = 1,366,637,012.55 × 544,249,643.67
  4. Step 4: Simplify right side
    990,294,389.28x = 743,791,707,106,570,752
  5. Step 5: Solve for x
    x = 743,791,707,106,570,752/990,294,389.28
  6. Step 6: Final answer
    x = 751,081,410.90

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Double scale
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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.