Home / 718,890,468,466.95-992,100,031,441.56-398,106,303,574.95

Finding the Fourth Proportional to 718,890,468,466.95, 992,100,031,441.56 and 398,106,303,574.95

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Solution

The fourth proportional to 718,890,468,466.95, 992,100,031,441.56 and 398,106,303,574.95 is: 549,403,968,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,468,466.95 : 992,100,031,441.56 = 398,106,303,574.95 : x
  2. Step 2: Convert to fraction form
    718,890,468,466.95/992,100,031,441.56 = 398,106,303,574.95/x
  3. Step 3: Cross multiply
    718,890,468,466.95x = 992,100,031,441.56 × 398,106,303,574.95
  4. Step 4: Simplify right side
    718,890,468,466.95x = 394,961,276,293,791,153,651,712
  5. Step 5: Solve for x
    x = 394,961,276,293,791,153,651,712/718,890,468,466.95
  6. Step 6: Final answer
    x = 549,403,968,501.70

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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.