Home / 497,312,030.40-745,968,045.60-388,472,913.60

Finding the Fourth Proportional to 497,312,030.40, 745,968,045.60 and 388,472,913.60

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Solution

The fourth proportional to 497,312,030.40, 745,968,045.60 and 388,472,913.60 is: 582,709,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,312,030.40 : 745,968,045.60 = 388,472,913.60 : x
  2. Step 2: Convert to fraction form
    497,312,030.40/745,968,045.60 = 388,472,913.60/x
  3. Step 3: Cross multiply
    497,312,030.40x = 745,968,045.60 × 388,472,913.60
  4. Step 4: Simplify right side
    497,312,030.40x = 289,788,380,126,729,664
  5. Step 5: Solve for x
    x = 289,788,380,126,729,664/497,312,030.40
  6. Step 6: Final answer
    x = 582,709,370.40

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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.