Home / 386,843,948.80-579,762,038.40-156,624,582.40

Finding the Fourth Proportional to 386,843,948.80, 579,762,038.40 and 156,624,582.40

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Solution

The fourth proportional to 386,843,948.80, 579,762,038.40 and 156,624,582.40 is: 234,732,861.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,843,948.80 : 579,762,038.40 = 156,624,582.40 : x
  2. Step 2: Convert to fraction form
    386,843,948.80/579,762,038.40 = 156,624,582.40/x
  3. Step 3: Cross multiply
    386,843,948.80x = 579,762,038.40 × 156,624,582.40
  4. Step 4: Simplify right side
    386,843,948.80x = 90,804,987,155,772,768
  5. Step 5: Solve for x
    x = 90,804,987,155,772,768/386,843,948.80
  6. Step 6: Final answer
    x = 234,732,861.76

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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.