Home / 1,570,039,328.90-2,166,668,603.09-865,216,599.32

Finding the Fourth Proportional to 1,570,039,328.90, 2,166,668,603.09 and 865,216,599.32

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Solution

The fourth proportional to 1,570,039,328.90, 2,166,668,603.09 and 865,216,599.32 is: 1,194,006,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,039,328.90 : 2,166,668,603.09 = 865,216,599.32 : x
  2. Step 2: Convert to fraction form
    1,570,039,328.90/2,166,668,603.09 = 865,216,599.32/x
  3. Step 3: Cross multiply
    1,570,039,328.90x = 2,166,668,603.09 × 865,216,599.32
  4. Step 4: Simplify right side
    1,570,039,328.90x = 1,874,637,640,603,785,472
  5. Step 5: Solve for x
    x = 1,874,637,640,603,785,472/1,570,039,328.90
  6. Step 6: Final answer
    x = 1,194,006,803.59

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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.