Home / 387,931,323.60-581,896,985.40-345,841,196.40

Finding the Fourth Proportional to 387,931,323.60, 581,896,985.40 and 345,841,196.40

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Solution

The fourth proportional to 387,931,323.60, 581,896,985.40 and 345,841,196.40 is: 518,761,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,931,323.60 : 581,896,985.40 = 345,841,196.40 : x
  2. Step 2: Convert to fraction form
    387,931,323.60/581,896,985.40 = 345,841,196.40/x
  3. Step 3: Cross multiply
    387,931,323.60x = 581,896,985.40 × 345,841,196.40
  4. Step 4: Simplify right side
    387,931,323.60x = 201,243,949,612,289,312
  5. Step 5: Solve for x
    x = 201,243,949,612,289,312/387,931,323.60
  6. Step 6: Final answer
    x = 518,761,794.60

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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.