Finding the Fourth Proportional to 688,299,089.13, 949,852,879.67 and 375,033,303.09
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Solution
The fourth proportional to 688,299,089.13, 949,852,879.67 and 375,033,303.09 is: 517,546,032.73
Step by Step Solution
- Step 1: Write the proportion equation
688,299,089.13 : 949,852,879.67 = 375,033,303.09 : x - Step 2: Convert to fraction form
688,299,089.13/949,852,879.67 = 375,033,303.09/x - Step 3: Cross multiply
688,299,089.13x = 949,852,879.67 × 375,033,303.09 - Step 4: Simplify right side
688,299,089.13x = 356,226,462,912,188,352 - Step 5: Solve for x
x = 356,226,462,912,188,352/688,299,089.13 - Step 6: Final answer
x = 517,546,032.73
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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.