Finding the Fourth Proportional to 98,686,740.40, 136,201,953.84 and 56,862,798.40
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Solution
The fourth proportional to 98,686,740.40, 136,201,953.84 and 56,862,798.40 is: 78,478,873.77
Step by Step Solution
- Step 1: Write the proportion equation
98,686,740.40 : 136,201,953.84 = 56,862,798.40 : x - Step 2: Convert to fraction form
98,686,740.40/136,201,953.84 = 56,862,798.40/x - Step 3: Cross multiply
98,686,740.40x = 136,201,953.84 × 56,862,798.40 - Step 4: Simplify right side
98,686,740.40x = 7,744,824,242,890,026 - Step 5: Solve for x
x = 7,744,824,242,890,026/98,686,740.40 - Step 6: Final answer
x = 78,478,873.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.