Finding the Fourth Proportional to 172,395,848.21, 258,684,572.30 and 99,663,718.68
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Solution
The fourth proportional to 172,395,848.21, 258,684,572.30 and 99,663,718.68 is: 149,548,070.38
Step by Step Solution
- Step 1: Write the proportion equation
172,395,848.21 : 258,684,572.30 = 99,663,718.68 : x - Step 2: Convert to fraction form
172,395,848.21/258,684,572.30 = 99,663,718.68/x - Step 3: Cross multiply
172,395,848.21x = 258,684,572.30 × 99,663,718.68 - Step 4: Simplify right side
172,395,848.21x = 25,781,466,440,065,004 - Step 5: Solve for x
x = 25,781,466,440,065,004/172,395,848.21 - Step 6: Final answer
x = 149,548,070.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.