Home / 1,152,121,021.40-1,589,931,854.88-623,485,032.32

Finding the Fourth Proportional to 1,152,121,021.40, 1,589,931,854.88 and 623,485,032.32

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Solution

The fourth proportional to 1,152,121,021.40, 1,589,931,854.88 and 623,485,032.32 is: 860,411,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,121,021.40 : 1,589,931,854.88 = 623,485,032.32 : x
  2. Step 2: Convert to fraction form
    1,152,121,021.40/1,589,931,854.88 = 623,485,032.32/x
  3. Step 3: Cross multiply
    1,152,121,021.40x = 1,589,931,854.88 × 623,485,032.32
  4. Step 4: Simplify right side
    1,152,121,021.40x = 991,298,713,926,454,528
  5. Step 5: Solve for x
    x = 991,298,713,926,454,528/1,152,121,021.40
  6. Step 6: Final answer
    x = 860,411,966.72

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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.